Mercury Outboard Forum

This is the best Mercury Outboard Forum on the internet, it's yours! If you own a Mercury Outboard.   Are you looking for good advice about your Mercury outboard engine problems and issues. All you need to know about your outboard engine issues and good advice from your fellow boaters.

From outboard engine and electrical and electronics systems to engine and alarm issues, tilt and trim issues, this is the place to find information.

Mercury Outboard Forum

So where do you start? There is a lot to know. I get asked regularly about what is the problem, and more importantly and how to fix a problem. I am a boat owner and that’s why I have published a dozen books to tell you all that you need to know about how to take care of your boats and systems.

My name is JOHN C PAYNE, and many of you may already have one of my books on marine electrical and electronics systems (The recently published Marine Electrical and Electronics Bible now in it’s 4th Edition) or perhaps one of the many other books on sailboats and yacht systems.

The Mercury Outboard Technical Forum for Answers to Questions

I am not an armchair expert, but a qualified and practicing marine electrician and engineer and a marine surveyor. I do this for a living.  Let this website help you with the boat forum! Thousands of people input with answers to problems.

What is your outboard problem? If you know what the problem is then you are halfway towards finding  the right solution. Why not choose from one of my many books to help you fix your problems. Here are some hot topics for the boat-forum:

Battery Charging How to keep the power on and solve battery charging problems

Engines How to make sure your engine starts every time and how to fix it when it doesn’t

This is just a fraction of the 3000 plus questions that were posted, and it is hoped that this NEW Mercury Outboard forum and bulletin board does the same.

The Forum is also a great place to look for spare parts that are hard to find, share your problems and experience with others, ask questions, share stories and more about my books and related topics and a lot more. Create your own web page every time you submit an article and include great low resolution images as well. 

How to Post Questions to this Mercury Outboard Forum

Forum Editors Forum Rules! Yes there are a few basics when posting!

1. DONT TYPE IN ALL CAPITALS as it will not be posted. Don't use any HTML code as it will be deleted

2. Don't use bad language or profanity as it will not be posted.

3. To post to the Outboard Forum please at least use a first name and location with your email address in the notification page, so you will get a message when someone leaves a comment.

4. You need to insert a couple of sentences describing you problem and add an image if possible as it helps others. If you insert just a couple of words using SMS speak the system will reject it.

5. Don't Spam the site with multiple submissions.

6. We receive dozens of posts a day and it is quite impossible to reply to more than just a few given this is a free site and I don't have enough time given I have a day job. 

7. It helps if you start the headline with your Mercury outboard engine make/model number or boat make/model number. Save the problem description to the text, more detail means better answers.

Do You Have Mercury Outboard Engine Problems?

Do you have Mercury outboard engine problems? Share it on the Outboard Forum! Whether you are looking advice on an outboard motor or a difficult marine electrical or electronics technical problem then post your story or message here! UPLOAD AN IMAGE OF YOUR PROBLEM EQUIPMENT! Give us a detailed description, short 5 word posts are not much use and will not be posted. Put your boat info, outboard make and model or basic detail in the post title.

Have a Mercury Outboard problem to share?

Mercury outboard engine problems and issues? need someone to try and help resolve them? Then use this forum and maybe someone can help.

What Other Visitors Have Said

Click below to see contributions from other visitors to this page...

1991 mercury 150xr4 
Fuel pump diaphragm split, when I typified out and restarted the engine it idles at 3500 rpm, tried timing adjustment but it made no difference

Mercury, 40eojet30, 1999 
Since last fall the engine loses power. Starts fine, idles fine, no misses. I power up and get on plane in about 30-45 seconds. All okay for about another …

Mercury 1998 90 hp 2 stroke  
When running the boat in idle or slow no alarm sound when try to get up on Plain solid loud alarm sound oil is full and water pump is brand new and pumping …

Mercury 1998 90 hp 2 stroke  
When running the boat in idle or slow no alarm sound when try to get up on Plain solid loud alarm sound oil is full and water pump is brand new and pumping …

1996 Mercury 175 EFI outbaord motor 
I have a 1996 Bayliner Rendezvous deck boat that I have had for several years. Cylinder 3 is dead and I have to repower this beast. There appear to be …

1991 Mercury 150 xr4 
The engine is not firing on cylinders 1 and 4 and is not charging replaced both switch boxes and no change. What should I do now?

1996 Mercury 25hp wont slow down 
I have a 1996 Mercury 25hp with built in timing advance in the power pack and when backing off the throttle it take forever to slow down to idle and the …

2002 Mercury 225 
Well starter was sticking so replaced the solenoid and did not fix the issue. That did not fix the issue. The issue was the starter was getting stuck in …

2018 mercury 115 four stroke  
I’m having problems getting it to run right, we took it out for the first time today, it is brand new engine so we wanted to break it in. It idled fine …

Mercury 150 xr6 
I have no spark on 2 4 6 I have spark on1 3 5 I switched out outer switch box I now have spark on 4 but not on 2 6 I switched the leads r/w b/w to …

1995 merc 40 hp wont plane, 3400 rpm 
boat ran great, then suddenly would not run over 4200rpm, down from @5200. barely plane. I eliminated fuel system fromexit of cowl, then all nee fuel lines …

75hp Mercury Bass Tracker boat raising up in front 
My husband has a bass tracker 75hp merc. motor and it is I think about 17 ft long. When we are in the boat traveling quite a distance to our fishing spot …

Mercury runs half speed until hot 
My Mercury outboard thunderbolt 50 hp runs at half speed for about 20 min then it takes off like a bat out of hell. It has new plugs sprayed the carbs …

Mercury 115 1994-95 Leaking water from the thermostat  
I have an Mercury 115 1994-95 it is leaking water from the place the thermostat is, other owner told me it was because water here in the north is so cold. …

3L mercruiser i/o 
After taking boat out of winter storage, I attached hose and boat ears turned on water and started engine. It runs if above 3000rpm, but anything less …

77 Mercruiser in line 6 fuel problems 
Hello, my77 glastron 165hp after shut down suddenly started to start for a second and then stall out leaving me getting towed home. I replaced the fuel …

1989 Mercruiser 4.3L Power steering pump Replacement  
I recently bought a boat with a 1989 MercCruiser engine. We had in for its service and now the power steering pump is just bleeding fluid. The tech at …

84 mercury wont run at top speed 
have a 84 mercury on a 84 skeeter boat runs great for 1 to 2 miles and them starts to slow down and want run above 1500 rpms try to thottle it up it well …

55hp Mercury Boat wont start when in the water 
My husband and I just boat a john boat with a 55hp Merc outboard motor. He cleaned and adjusted the carbs already. He then hooked it up to the hose and …

140 mercruiser wont reach full speed 
have a 1986 mercruiser inboard starts and idols fine runs to about 1800 rpm and falls out when increased throttle rapidly what is the problem? I can mess …

7.4 mpi Mercruiser oil leak? 
I have a 98 Formula 252 SS with a 7.4 mpi Mercruiser, Bravo 3 outdrive.....I bought the boat 3 years ago and have been restoring it slowly...Ive been very …

1988 175 HP Mercury 
I have just been given a 1988 Ranger bass boat with a Mercury 175 HP motor. I know very little about boat motors. I can not get it to start. It did …

115 Mercury 2008 Triton runs too slow. 
Three months ago we bought a (new)2008 Triton Cypress Cay Tritoon with a 115 Mercury. We got the boat from "Sport Boats USA" Ozark Mo. When we took …

1985 75 hp Mercury - won't rev in water 
we just bought a 1985 75hp mercury. we had the motor company where we bought it put it in the tank and all was well. we then took it to the water and …

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Mercruiser 350 MAG MPI Problems 
So a few weeks ago I was on my 2005 Chaparral Signature 240 equipped with a Mercruiser 350 MAG MPI with a Bravo Stern drive. I used the boat only about …

Mercury 115HP ELPTO Electrical 
I have a Mercury 115HP ELPTO (1989) it runs terrific for almost exactly 40 minutes than dies, it won't start or fire for about an hour than takes right …

1989 Mercury 90 Tilt and trim will not go up  
Tilt and trim will not go up. I checked both relays with ohm meter and both works. Trim will go down and up every once in a while. Checked wires to trim …

2006 Mercury 90 hp 4 Stroke Not rated yet
Ran great for 15 minutes even at full throttle. Then I started to troll and noticed a miss once in a while. Then stalled after a while. Would start right …

Mercury,25eh,efi , 2019 Not rated yet
Looking to buy new 25 hp outboard, have a 1986 9.9, love it , but i need to go bigger, 4 strokes are heavy, enuff said. does the new 25 have the old manuel …

1115D73HY 1B804092 115ELPTO Not rated yet
With the boat in the water it runs and goes real smooth at idle. When I get just above idle it has a loud noise. It doesn't appear to be missing. When …

mercury 650 1965 Not rated yet
After installing a new water pump, water pump housing and replacing the two seals under the water pump housing water is not pumping with the same amount …

Mercruiser 350 inboard 1985 Not rated yet
Cannot get ignition to start boat. Has new ignition coil, getting gas, plugs good, carb rebuilt. will not cough even with starting fluid. help

Mercury, 2 stroke, V6 EFI, 240 HP, 2003 Not rated yet
Engine warning beeps and throttles down. Last code pulled from dealer was over-revving. They replaced a regulator module and said it was fixed. Same …

Tracker(mercury) 115 2stroke 2005 Not rated yet
The throttle arm backs off. Cannot maintain speed without holding the arm down.Can't find a way to put tension on the arm.

2003 Mercury 150 XR6 Not rated yet
I am purchasing from another state a boat that has a 2003 Mercury 150 XR6 engine. He states what he "thinks" the hours on the engine is. What I can't seem …

Mercury 150 2016 Not rated yet
Hi. I have a 2016 150 which is on a Nitro Sport. The limiter switch on the motor is acting up. will lift up but not down. a mercury mechanic showed me …

Mercury oil injected 60, 1987, #0B157444 Not rated yet
My son just bought a beautiful 1987 Bass Tracker w/ Mercury oil injected 60 outboard. The elderly gentleman who owned it is not mechanically inclined, …

2008 Mercury 15hp outboard (F15M) Not rated yet
Hi, Hoping you folks can help me out.I have a 2008 15hp Mercury outboard (F15M) that started making a knocking noise.Here is what I’m observing - no problems …

2005 Mercury 40hp ELTPO 2 stroke Not rated yet
2005 40 hp ELPTO 2 stroke mercury runs fine for the first 10 minutes then suddenly starts revving/whailing very high and clunks when shifting gear back …

1991 Mercury 115 2 stroke Not rated yet
I'm having an issue with my warning alarm, at first i would get the one beep when the key was turned on letting me know the system was working correctly …

2005 four stroke 60 horse Bigfoot Not rated yet
2005 four stroke 60 horse Bigfoot I was going across the lake wide open at 6000 RPM and then all of a sudden it went to 4500 PMs The engine sound and …

1998 Mercury 40/30 jet Not rated yet
Since late last fall my motor has been giving me fits. After start up I let it idle for a short time. I then engage the throttle and power up. When I hit …

Mercury, 60 ELPT BF 2010 Not rated yet
Nothing works (no power) after winter storage. Battery is fully charged, all connections are OK. Almost seems like a fuse. Are there any other fuses …

mercury 25hp 2006 Not rated yet
i have a 2006 mercury 25hp 4 stroke efi and when i connect the earmuffs it idles and runs perfect but when under a load in the water then i will only go …

Mercury, 50hp, 2005 Not rated yet
Engine starts great. Idles great. When given full throttle it takes off great but in a few minutes it starts to slow down. If I keep the rpm's around 3500 …

88 70hp mercury  Not rated yet
My boat was running great about a month ago and now it barely wants to start and when i do get it started it just cuts off, i had it going when i rev it …

1998 Mercury 115 offshore  Not rated yet
Hello , i am Wondering if anyone could give me a name for this part . I have Searched and searched but can not seem to find name of this part thanks in …

2001 Mercury 15 Hp 4 stroke outboard pull start  Not rated yet
My engine runs good and revs up fine in neutral but once put into forward it bogs down and will not run faster than bout 35% at full throttle what is the …

1986 35 hp mercury outboard Not rated yet
My Name is Bruce. I just cleaned the carb. The engine idled fine. took boat out and it would not plane off. The motor started running on just 1 cylinder. …

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Mercury 115 1982 Not rated yet
1982 Merc 115 tower of power making ticking noise at low rpm. Tick increases with speed up to 1000rpm then goes away. Happens consistently whether in forward, …

1998 mercury 150 efi Not rated yet
turn key all I get is a few beeps, no crank. tested battery shows 12.8 volts. is there some troubleshooting guide or outline you can direct me to. I'm …

Mercury 175xr2 1999 Not rated yet
Starts and idles fine then starts surging when I give some throttle (weeeooo weeeooo weeeooo). Wont reach full power I guess it's probably electrical, …

Mercury 175xr2 1999 Not rated yet
Starts and idles fine then starts surging when I give some throttle (weeeooo weeeooo weeeooo). Wont reach full power I guess it's probably electrical, …

1998 Mercury 215hp saltwater  Not rated yet
My tech told me that the magnet on my flywheel is broken up. How much is a flywheel? Should I get a new or used one?

2003 mercury 150 XL 2 stroke Not rated yet
will not shift into or out of gear sometimes Cable all seem to be moving corrcly

2019 Mercury 60 ELPT EFI 4S Not rated yet
The leg splashes water into the boat. The boat is a Princecraft Amarok DL WS Anyone sitting in the jump seats are guaranteed to get wet.

mercury 150 L DP 1999 Not rated yet
I removed the lower unit to replace the impeller. I cannot align the driveshaft spline with the crankshaft. I have tried rocking the engine and turning …

Twin Mercruiser 7.4 Engines engines will not start Not rated yet
Twin Mercruiser 7.4 Engines will not start after running perfect for an hour

Mercury 75hp model# 1075412AD year 2002 Not rated yet
The motor will not get up over 3000 RPM under load. However, it will in neutral and in gear in reverse

2012 Mercury 9.9 pro kicker Not rated yet
Trolling out in lake Erie and alarm beeps start in when running kicker motor. Water pump new and running great. Oil level new and full. Not sure why beeping …

MERCURY ELPT 115 CT 4 S Outboard doesn’t even turn over Not rated yet
I go to start my MERCURY ELPT 115 CT 4 S motor and i get nothing but clicks!!! Batteries (2) are good, it’s in neutral and my safety run switch is on …

2008 mercury 200 optimax  Not rated yet
Keeps blowing same cylinder this is the 3rd time motor has less than 60 total running hrs

Mercury 60hp motor trouble Not rated yet
I have a 2013 bass tracker Mercury 4 stroke motor only has about 15hrs on it. I dont know the proper maintenance on it so I took it just one time to where …

2014 30hp Mercury 4 stroke Starting Problem Not rated yet
I have a 2014 30hp Mercury 4 stroke that has been setting for approx 1 year, the gas was not drained. All gas has been removed, fuel tank, hoses/bulb and …

92 Mercury 2.5 efi,200 hp Cylinder filling with gas Not rated yet
I have a 92 mercury 2.5 efi,200 hp. The bottom cylinder is filling with gas. If you remove the plug and roll it over it sprays out gas, then put the plug …

Mercruiser 3.0 Alpha One turns over but won't start  Not rated yet
I just acquired a 1994 Bayliner Capri 1750 with a Mercruiser 3.o Alpha One that had been sitting for three months from a buddy. Got it home and noticed …

200hp Mercury electrical problem Not rated yet
200hp engine blew on my 1999 nitro boat. I found a used 200hp on a wrecked boat. I switched them out and took the boat out. Had to end up switching out …

50hp mercury 500 thunderbolt Prop requirement Not rated yet
I have a 1980 alumicraft classic deluxe 16.3 ft 570lb with a 50hp mercury 500 thunderbolt and I don't know what prop I need to get. I have been told many …

1998 90hp Mercury Prop spins in neutral  Not rated yet
I recently serviced my lower unit including water pump on my 1998 90hp merc. When I went to put it back on couldn’t get the boat in reverse took it back …

5hp Mercury What is the Yellow sticker  Not rated yet
I’ve got a 5 hp Mercury outboard that has a yellow sticker with a water droplet with two arrows pointing to the water droplet does anyone know what this …

1977 1150 Mercury in line 6 Not rated yet
Motor started and ran fine all last year. Was starting and running fine when winterized in October, 2018. Got it out to go fishing yesterday. Cranks …

90 hp Mercury 4 stroke idle and stalls. Not rated yet
I have a 90 four stroke Mercury 2001. Have a issue with poor idle and stalls. It runs great after take off. But poor idle and motor skake. I have had …

1998 mercury 200hp No gauges Engine in Limp Mode Not rated yet
1998 mercury outboard 200hp. Just bought the boat as is for cheap. Previous owner got her up on plane, lost all gauges and at the same time engine went …

1976 mercury 1150  Not rated yet
I have a 1976 mercury 1150 outboard I have replaced all fuel lines gone through carbs linked and sync starts right up idles great when out on water and …

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2013 2 stroke dfi 225hp Mercury Optimax died.  Not rated yet
I was fishing offshore the other day and added oil to my 2013 225hp oil injected mercury optimax that is a dfi model. Covered approx. 100nm and decided …

1990 135 hp Mercury black max. How to remove trim solenoids on  Not rated yet
Bought new solenoids to replace the one bad one. I cannot get the old ones removed. The 3 bolts have locking nuts and are inaccessible. Do need to remove …

Mercury 40 hp outboard keeps blowing fuse for main relay switch Not rated yet
The boat was purchased in 2011, so it's 7 years old. however, it's probably has less than 150 hours on it. I haven't run the motor in over a year, but …

Mercury 2015 150 Heavy shaking  Not rated yet
I have a heavy shaking starts at 2800 rpm while under load. It's a mercury outboard 2015 150 4 stroke. The motor shake the same way when in neutral and …

4.3 Mercury Strange engine stopping Not rated yet
I have a 1989 celebrity 181 equipped with a 4.3 mercury and a mercury out five. My problem is it has suddenly deteriorated eloped problem of suddenly …

2005 mercury 125 outboard Motor starting issues Not rated yet
I had just replaced solenoid and starter on my 2005 mercury 125 outboard. I had taken it out twice before and no problems. On my third trip, I noticed …

Mercruiser tilt and trim electrical problems Not rated yet
I have no power tilt and trim , two wires burnt and do not know what they connected to on the transom coming from the pump and I cant find what they were …

7.4L Mercruiser 1991 Sea Ray 250 Not rated yet
I left it sitting for the winter and I've got no power to any of the gauges, lights, etc. Will not turn over. I took both batteries to be charged and they …

2015 90hp Mercury throttle & shift cable replacement Not rated yet
trying to replace throttle and shift cable on a 2015 90hp Mercury outboard engine, shift cable is a problem getting to. Does the rest of wires & hoses …

7.4 mercruiser lx mpi mercruiser surges at about 1200 rpm Not rated yet
I have a mercruiser 7.4 lx mpi with a bravo 2 sterndrive.At about 1200 rpm just off idle it surges.I have replaced the throttle position sensor and it …

Mercury 135L Opti won’t go into any gear Not rated yet
Hello. We have a Mercury 135L Opti motor & just went out fishing for the first time this summer. We got it in the water and it won’t shift into forward …

4.3 Mercruiser Starting problem on Bayliner Not rated yet
I just had a starter professionally installed last fall on my 2005 Bayliner 195 with 4.3 Mercruiser. I started and ran it at home using water and it ran …

350 mercury crusader Carburettor not getting fuel in  Not rated yet
I changed the fuel pump and the fuel filters and I still cannot get gas to come through the lines. I am wondering if the cannister filter is clogged. …

75hp Mercury outboardTrim issues Not rated yet
When I'm at idle on my 75hp Mercury outboard I hit the trim up on my throttle the boat motor will die and an alarm will sound. When I'm under power and …

Mercury 25 hp1985 Not rated yet
Ok fellas i have a 25hr merc and i just got it out of the boat shop today oh its a 85 model and i just replaced every single electrical part on it for …

5.0 Mercrusier stalls during takeoff? Not rated yet
I purchased a 2006 Crownline 220 EX with a 5.0 Mercruiser with an Alpha 3 drive. Had it out 3 times the first week with no problems. Took it out today …

115 Mercury Verado on Pontoon Boat - Low Thrust Not rated yet
We have a 22 ft pontoon boat with a 115 mercury verado. It has a 21 1/2 inch prop with. 15 pitch. The prop seems to be overreving and the boat is slow. …

Mercury mirage 175 hp  Not rated yet
I have a 2004 mercury Mirage 175HP 6 cylinder 2 stoke Boat starts and idles with hose hooked up to outboard you can give it full throttle runs and sounds …

91 Mercury 15hp problems Not rated yet
I bouaght a 1991 15hp Mercury outboard ran great first 15 times out then one day it would not start at all. After going over the motor I found a ground …

2001 Mercury 60 hp 2 stroke jet  Not rated yet
Motor was running fine got hot fixed overheating problem compression 120 on all three cylinders boat will not get wide open throttle bogs spits and sputters …

2003 Mercury 115 2 stroke Not rated yet
I was running wide open i slowed abit hit another boats wake hit hard nothing out of the ordinary than the motor bogged down barely would stay on a plane …

Mercury Mariner 115 - Killswitch location 1990 ozark Not rated yet
I’m trying to figure out what’s wrong with my boat. I either burned up the starter/solenoid or there is a killswitch and I don’t know where it is. I have …

Mercury 100 engine issues Not rated yet
My engine is currently with a mechanic who I frankly think is extracting the urine. The engine is 87 and he is telling me it need a new flux capacitor …

60hp Mercury motor feels like its dragging Not rated yet
When i go full throttle, for about 2 minutes, it feels like my motor is dragging. Won't get to full speed, then all of a sudden, without really doing anything, …

79 mercury 402 40 hp stuck in neutral  Not rated yet
Same boat that would not shut down. I fixed with a kill switch. This a 79 bass Tracker. I was checking circuits when the engine started to smoke? It was …

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Mercury Optimax 200hp Problems Not rated yet
I just had my lower unit replaced but now I’m noticing an issue where the engine at low throttle , you can hear it occasionally lose power or not purr …

60hp Mercury 4 stroke 2013 High pitched squeals Not rated yet
I get a high pitched squealing sound when I turn on the motor on my 20 foot Sunchaser pontoon. Motor is a 60hp Mercury 4 stroke 2013 model. Has run and …

2006 60 hp Mercury efi bigfoot 4 stroke Not rated yet
Boat runs great as long as your going. Once you shut down and anchor for awhile, will crank but never fire. Was told that there is a diode that is probably …

85 Mercury 35hp trim gauge install Not rated yet
Looking to install a trim gauge on an 87 procraft 1510 bass boat with an 85 mercury 35hp 2 stroke. Does this motor have a trim sender? Where would it be? …

Mercury Optimax 200 dies Not rated yet
Hey there my optimax 200 keeps dyeing when I’m boating it’s like someone hits the kill switch. I put fresh gas and I eliminated the inline fuel filter …

79 mercury 402 40 hp will not shut down? Not rated yet
I have a 1979 16' bass tracker, i am restoring. I have the engine work done. It runs fine now! However, it will not shutdown with the key switch? I have …

115 Mercury 4 stroke Not rated yet
I have a brand new Mako Pro Skiff with a 115 Mercury 4 stroke, I accidentally left the battery switch in the on position, for like 2 days. Today I noticed …

Mercruiser 350 mpi petrol motor starting problem Not rated yet
I have a 1990 bayliner 3255 avanti sunbridge cruiser with 2x mercruiser 350 mpi petrol motors. My problem is that the starboard motor won't start without …

225hp 2002 Mercury Optimax circuit breaker location?  Not rated yet
I am having massive problems troubleshooting my twin 2002 225hp optimax motors ,both motors are running well ,but I had both trim motors working well ,then …

Mercury 60hp 3 cylinder late 80s Not rated yet
Hello I have a late 80s mercury 60hp 3 cylinder I bough it recently it run perfect the problem is the gay who I dot it from took all the wiring of the …

Mercury 40hp 2 stroke oil injection Not rated yet
Hi, I just bought this engine, compression is good on all 4 cylinders, the boat is really hard to start and it will only start with fast idle lever up …

2012 Mercury 150 4-stroke fuel pressure problems Not rated yet
spring 2016 start up motor started perfect, idled perfect but choked and coughed at any thing over 2000rpm. Dealer replaced the fuel pressure regulator. …

Maxxum 5.7L Mercruiser Very High rev at "idle" Not rated yet
I replaced the linkage on the throttle body (the old one broke last fall, and I had to make a new one as they are out of production) and now when I start …

2008 mercury optimax 200 intermittent alarm  Not rated yet
My bass boat has a 08 mercury optimax 200. After launch and idling out of the no wake zone when i was trying to plane off i had an intermettent alarm …

Mercury 90hp throttle won’t stay in position  Not rated yet
I have a 2015 Cypress Cay Seabreeze with a Mercury 90hp four stroke. When cruising around at half throttle, the lever stays put and I can let it go, …

2001 Merc 200 Optimax, 2001 Lund 1950 Tyee Not rated yet
With the Master Power on, the 20amp fuse on the engine block will blow intermittently when the engine is running. It only blows when the engine is running …

2010 Mercury 9.9 4 stroke blowing smoke  Not rated yet
Last sunday went out to my local lake early in the morning, 6:30 to be exact, i let my motor warm up like i always do, no smoke, started out from the boat …

Mercury Optimal 115 Boat motor not starting Not rated yet
So I have a nitro x5 2010 with mercury optimal 115 on it. Recently I’ve been on the water and motor would not start. I turn key and it beeps like normal …

Mercury 225 HP-Hard to start Not rated yet
I have a 2004 Merc 225 that takes forever to start. I usually have to take the cowl off and use the manual choke. does anyone know what the problem might …

2002 Mercruiser 6.2 temp fluctuates Not rated yet
Hi, I have a 2002 31’ doral and my temp fluctuates from 120 (the lowest temp), to 165, then maybe 120, then to 170’s, then drops to maybe 130, and keeps …

Mercury 115 hp Not rated yet
I have a 2016 Mercury CT 115 hp engine in a 21’ pontoon. It continues to run hot and cavitate at full throttle. When I back the speed down 5 mph there …

1993 Mercruiser 4.3L, hard start when warm Not rated yet
My 1993 Bayliner 2250, with a 4.3L mercruiser, electronic ignition ,2 barrel carb. will start up quick when cold. However after making a run to a fishing …

Mercury 115hp elpto '95-'96? chatters on deceleration/shutdown Not rated yet
have 115 2-stroke(has 2-4 system)idles on top 2 cylinders/ above 1800rmps runs on 4 cylinders, anyway- when shutting down engine after running fast or …

Mercury Pro xs 250 year 2016 - Solenoid overheating when charging batteries Not rated yet
So I haven't put my boat in the water in a couple months. Pulled off cover and did some inspections to the batteries for corrosion on wires and terminals …

Need help with mercruiser 170 4 cyl Not rated yet
I'm getting spark at all cylinders but boat won't start boat was running and seemed to be getting harder to start each trip I'm new to boats so I was clueless …

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260 Mercruiser has no power running rough blowing smoke Not rated yet
I'm having a problem with my 260 mercruiser. It wont rev up, has no power and blows smoke. Out of the water it runs fine. I put it in the water and its …

2017 Mercury 60 HP, how To disconnect? Not rated yet
Hello and thank you. I have sold my 2017 Merc 4 stroke and need to disconnect from the transom and have it hoisted into my pick-up so I can deliver it …

1967 mercury 350 outboard charging system Not rated yet
Motor starts and runs decent after recent purchase. rebuilt carb and fuel pump and now not sure how to make sure the engine is charging my battery before …

mercruiser 5.0 alarm only over 2K rpm's Not rated yet
I have a 2005 Chaparral sunesta 236 with a 5.0 mpi and a bravo 3 outdrive. It recently started throwing an alarm (2 beeps every minute) when I go over …

Mercury 50 hp outboard acceleration problem. Not rated yet
My pontoon hasn't been run much in the past 2 years. It would not start and we felt it was a fuel problem. We rebuilt the fuel pump and replaced the fuel …

Mercruiser 4.3 XL Alpha One stern drive will not raise Not rated yet
Hey everyone, I have a 1997 Maxum 1900 SR with a Mercruiser 4.3 XL Alpha One I/O. Lately, my trailering button and my up button on my remote control is …

Hour meter on 1992 Mercury XR4 BlackMax 150? Not rated yet
I recently purchased a 93 19' Rajin Cajun with a 92 Mercury XR4 BlackMax 150. I bought it from the original owner. I would like to know how many hours …

2006 350 MerCruiser Manifolds seem to be too hot Not rated yet
I was told that you should be able to put your hand on both manifold while the boat is been running for a while and be able to leave your hand on them? …

Mercury outboard 2 cylinder 4 stroke Not rated yet
I am trying to help a niece with a outboard engine problem. The motor belongs to her school's rowing team. There is a red light on the handle near the …

1999 Mercury EFI 150 Clunking Not rated yet
I have a 1999 Mercury EFI 150. My problem is when Im cruising at any speed the motor feels like it his hitting something, a clunk will happen and the the …

1989 Mercury Black Max Engine Power Issues Not rated yet
Engine has been running good and all fuel filters have been changed recently. The other morning heading out of the marina I was idling out. Leaving the …

Mercruiser 5.0 MPI Need to prime?  Not rated yet
I have 2 engines and seems like my port side engine always have problem on over heating if it hits 180 degree. Recently I have changed the engine oil …

1995 Mercury Exar  Not rated yet
I have a 1995 mercury XR I 150 that I took out on the lake and noticed it would bogg down when I was trying to give it throttle several times and never …

150 HP Mercury outboard Several gauges quit reading Not rated yet
I have a 150 HP Merc outboard on a 20 ft runabout. Everything worked perfect until I had a power steering cable put in. Now the in dash fuel, speedometer, …

2002 mercury 2 stroke will not turn over Not rated yet
This is the first problem I have had with this boat (2002 Triton TR176) since buying in 2008. Don't use it often so had to replace starter battery and …

79 marlin 165 hp mercruiser Not rated yet
Working on 1979 165 hp mercruiser I/0 Was cruising across the sf bay and boat made a pop like it came out of gear and i lost drive to fwd and rev and …

Electrical no power mercury 9.9 Not rated yet
2000 mercury 9.9 Bigfoot sun tracker pontoon-my 20 amp fuse keeps blowing in motor..no power to start , gas gauge doesn't move and red oil pressure light …

Mercruiser 3.0 running fine and dies... then no power Not rated yet
We have a little 18' SeaRay with a Mercruiser 3.0 that just did something very unusual. This was our first time out for the season. Started fine and …

2011 Optimax 150 SN 1B839153 Not rated yet
Last year motor starting throwing low voltage codes and put itself into guardian mode but would work fine after shutting it down and waiting about 5 minutes. …

2015 mercury 115 HP Not rated yet
I installed another battery and I arked the cables and lost all power to motor, the safety kill switch is making a beeping noise cant seem to find anything, …

150 mercury 2.5L XRI outboard motor Not rated yet
Was on the lake running my 150Mercury 2.5L XRI outboard on my 1993 champion bass boat when it just died and fell on its face. Tried to start it back and …

60hp Mercury 4 stroke splutters when accelerating Not rated yet
I have a 2005 60hp Mercury EFI 4 stroke, and sits on a 4.85mtr Stacer. So far its been reliable, quiet and economical (done 180hrs) but its just started …

40hp merc 4stroke runs fine then starts loosing power  Not rated yet
My 2011 bass tracker 40 hp four stroke mercury will start up and run fine for a while then it starts losing power and bogging down to nothing , You can …

Mercury 25hp 4stroke cranking issue Not rated yet
I have a 2009 mercury 25hp 4 stroke EFI. It has been sitting for about two years with no fuel in the system. Now it will not turn over. The flywheel …

1979 mercury 140 HP cold starting issues  Not rated yet
I have a 1979 mercury 140 HP outboard that is very hard starting when cold. Seems to be a fuel issue. When starting for the first time of the day or after …

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2002 mercury 60 hp 2 cycle no power to tilt and motor Not rated yet
Hi everyone. 2002 mercury 60 hp 2 cycle no power to tilt and motor motor won't crank but the choke button on starter key still clicks. I am getting 12.64 …

Mercury 850  Not rated yet
I have a 1976 model mercury 850 85 hp outboard its been stored for years has great compression but you could see where someone had patched in some replacement …

2005 mercury 115 4 stroke leaking oil  Not rated yet
I have a 2005 mercury 115 4 stroke that leaked a small amount of oil down the lower end cases. the oil level is 1/2 qt low. can anyone tell me where the …

Mercury outboard motor will not start Not rated yet
I have a 2006 mercury 60hp bigfoot 4 stroke efi that will not start. Went fishing today and the motor started fine, and ran great. Turned it off to fish …

1999 Mercury 125 hp 2cyc 4 cyl outboard problems Not rated yet
Starts but will not stay running. Changed all gas components, stator, trigger, plugs, choke actuator...it seems one plug does Not get hot and has no wear. …

1983 Mercruiser 260 bogs after running 15 mins from 3200 rpm to 2000 rpm? Not rated yet
I am a Finlander here in beautiful Wisconsin! Bought an older Carver Santa Cruz 26 (1983) and restored it with care to it's original beauty! I love the …

140 Mercruiser dies when tilt down in lake Not rated yet
So I bought my first boat and well after cleaning the carb well and adjusting the idle I got the boat to run great while on muffs. I took it out the other …

1996 merc 9.9 4 stroke with no choke issues  Not rated yet
hi there, i have an older merc that on a recent trip started no problem first pull it would run all day for a couple of days then next morning nothing …

3.0 mercruiser won't throttle up past 2000 rpm Not rated yet
I have a 1987 ebbtide with a 3.0 mercruiser I have replaced valves rocker arms cam shaft rebuilt carb plugs wires points condenser cap rotor button …

1977 Mercury 150hp Tower of Power bogs under load Not rated yet
Over the winter I rebuilt the fuel pump cleaned carbs paying very close attention to mixture screw locations, replaced fuel tank and fuel lines also replaced …

Mercury classic fifty outboard stalling Not rated yet
I recently received a 1988 Bayliner Bass with what I believe is the original Mercury "Classic Fifty" 45hp outboard. I was told by the previous owner that …

1985 mercury 75 hp 4 cylinder  Not rated yet
Not sucking gas through lower carb at idle like the top carb does. Need help I'm just curious if this is normal as I just got the boat and after tuning …

2006 mercury optimax 115 2 stroke alarm problems @ 4100 RPMs Not rated yet
I have a 2006 Mercury Optimax 115 2 stroke on a 2006 Triton Tr176 which everytime I run it I get an alarm at 4100 rpms.I can sometime run through it,with …

2000 Mercury efi 200 Not rated yet
I charged my batteries for a dry test the other day and both motors turned fine took for sea trial and right engine shut down as soon as I have throttle …

1984 Mercury 115 hp power trim & tilt problems  Not rated yet
I have a 1984 Mercury 115 hp outboard. it was a little low on fluid. After adding fluid it worked ok a little temperamental at switch but it worked. This …

200hp mercury optimax 2007 Not rated yet
I was going down the lake and my mercury 200hp started losing power and then it made a noise and it wouldn't crank back up and there was no beeping warnings …

mercruiser 120 low rpm's at wot Not rated yet
I have a 18ft galaxy with mercruiser 120 I/O. boat revs great (4000-5000 rpm's)but only getting 2200 rpm's in gear at wot. currently has 23 pitch prop …

Mecury 200 hp raises up in reverse Not rated yet
Everything works fine, but if i give it power in reverse,ing. On the water, everything appears to work f the motor raises up. Also, when i use my transom …

Mercury 4 stroke 150 HP keeps going into gaurd mode Not rated yet
My Mercury is a 2013 model and my workers ran 2 stroke fuel for a day then I changed it, it ran fine for a couple of days then in idle it overheated and …

Mercury 200 HP 2 stroke issues Not rated yet
I have a 1996 Merc 2 stroke that is having some issues. The motor starts regularly but when I put the throttle down it just seems like the motor is bogged …

Mercury 35HP outboard motor cooling Not rated yet
I have an older model 35HP Mercury Outboard motor. Did not use it all year due to health problems. Started it today, 9/27/15, to get it ready for winter …

1987 mercury 45hp classic 50  Not rated yet
1987 mercury classic 50 has no spark. I went out one day and it worked fine then the last time I went out and wouldn't fire up at all. There is no spark …

2007 Mercury 4 Stroke 115 Dropped from 6000 rpm to 5000 Not rated yet
While driving my 24ft Bentley pontoon boat, all of a sudden my max rpm and max speed dropped. I was getting around 6200 Rpm at 27 mph. Now it won't get …

1990 350 Mercruiser barely starts intermittantly Not rated yet
I have a 1990 Bayliner with a 350 and a QuadraJet Carb. It runs great at times, but at other times I cant even get it off the trailer. I have learned …

Mercury 75 hp Not rated yet
I got Mercury 75 1990s alarm started beeeeeeeeeep soon as I turn key wivout starting it but it keep beeping constantly until I turn key back a bit is this …

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mercury 3cyl 60 hp will not turn off. Not rated yet
I just change the starter , voltage regulator, Igintion switch & solenod. Motor ran like a kitten. I ran it for five minuties than I went to turn it off …

Have a 1981 Mercury 70hp bogs at full throttle ,  Not rated yet
So I took my boat out for its second outting this year , the first time outting we were on the water for 4 hours motor worked awesome , second outting …

2003 Mercury EFI 250 HP Not rated yet
Hi recently purchased boat went out eran fine Next time out drove 20 min than idled for 20 went to take off no power trimmd motor up to check if any thing …

Mercury Optimax 225 water pump Not rated yet
Started my 225 optimax for the 1st time this year and noticed the water was not pumping out of the pee hole. Someone told me it needs to warm up before …

Mercury Optimax 135 Not rated yet
I have a 2000 Mercury Optimax 135 hp with only 50 hours on the motor. The motor idles great, but when I advance the throttle in accelerates for about …

79 mercury 85hp shifting problems Not rated yet
I changed the water pump impeller , I am having a lot of trouble getting the shifter splines aligned so the shifter works properly. I have spent hours …

Ticking noise on 2002 Optimax Not rated yet
Was going about 4500 rpm and all of a sudden my 2002 150 hp Optimax starting makinf a loud ticking noise. Didnt seem to lose power but of course I slowed …

1983 80hp Mercury  Not rated yet
I have a newly rebuilt motor and I just rebuilt the deck, replaced carpet, and other items on the boat including the throttle and cables. The boat ran …

75 HP Mercury - Oil alarm Not rated yet
We have a 2003 75 horse merecury outboard it has plenty of oil when we go real slow our oil alarm comes on when we go fast is goes off what could be wrong? …

85 Merc 150 XR2 oil alarm after first starting Not rated yet
Turn the key on, alarm chirps as it should. Recently though, after starting, the beep beep oil alarm continues. Checked both oil tanks, and the remote …

76 merc 900 runs rough Not rated yet
I have a 90 hp merc 1976. was running great for several days and then would beging to run very rough at all trottle positions (even idle). Starts fine, …

1996 Merc 60 hp  Not rated yet
1996 60hp outboard starts and runs great, won't re start . We just purchased a used pontoon boat. It has a 1996 Merc 60 hp. The thing starts first attempt. …

2004 Mercury 25 HP 2 stroke only runs on one cylinder  Not rated yet
My 2004 Mercury 25 HP engine only runs only on one cylinder. The bottom cylinder works fine and the engine will run with only the bottom firing. If I …

3.0 mercruiser Not rated yet
The engine will start, idol and run through all the rpms but when it's in the water under load it will not power up and run above 10 mph. It will not …

mercury 120 1994 Not rated yet
Well it started about a 3 months ago and I havnt ran it sense then. It will not start I think I may have mixed my fuel to rich I emptied my tanks got new …

mercury 60hp outboard 1983 - Fuel choking off after 10 mins Not rated yet
I have a mercury 60hp outboard 1983 motor. I recently had the mid-casing replaced because it was cracked. The motor is running very well but after approx. …

75 Mercury Black Max bogs down Not rated yet
The motor runs great out of the gate for about half an hour then when I go to throttle down it boggs down, you can tell that it really wants to run when …

94 150hp 2stroke mercury outboard trouble starting when warm Not rated yet
Starting my engine is super easy but when I run it for a while and turn it off and wait about a half hour and go to restart, it will start but it takes …

1974 Mercury 500 5o hp wiring Not rated yet
I was having a problem with my boat that when I turned the key it would turn but not start, and I was not getting spark from the plugs, so I ask someone …

Mercruiser 175 I/O Hard Steering Not rated yet
I have a 1988 Blue Water 18 Ft Eagle Runabout with a Mercruiser 175 I/O and the steering has become hard, not locked up but difficult. I've checked the …

2003 Mercury 75 HP no reverse Not rated yet
I have an 2003 Mercury 75 HP 3 cylinder outboard, I dropped the lower unit to change the water pump impeller, reassembled everything, but now have no …

1983 merc 70hp Not rated yet
Just bought this boat had to change shift cable and do minor maintenance but can't get the I guess you call it the neutral rev button to work I push it …

Mercury 200 rapid deceleration Not rated yet
I have a mercury 200 that accelerates great but on throttling back hits a point where it decelerates rapidly (30 miles per hour to 10) in the space of …

1988 Pro 17 Mercury 40 HP Not rated yet
I acquire a 1988 Pro 17 Mercury 40 HP I never own a boat . My first question is how do i go about starting the engine up. Do I need to mix a certain part …

40 hp mercury jet sounds like it is coughing Not rated yet
Hey guy I have a 2002 mercury 60/40 jet and it starts fine and will run great but when I back off the gas it runs but it sounds like it is coughing and …

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Mercury 40hp battling to start and dies Not rated yet
I have a 2005 40 hp Mercury 2 stroke 3 cylinder. I am battling to get it started. Eventually after opening the throttle and about a hundred pulls it fires. …

1989 mercury 115 outboard trim issue Not rated yet
My old trim motor on my boat recently went out, so I replaced it with a new motor and pump. The new trim motor works properly but for some reason when …

1980 40hp mercury boggs down when put into gear Not rated yet
My brother bought a 1980 40HP Mercury for his boat. It idled a bit shaky when he first bought it so he put fresh gas, cleaned car and I believe adjusted …

1993 murcury tracker 40hp is sick Not rated yet
I have a 1993 murcury tracker that wont stay running unless I continue to press the choke. This was all of a sudden thing. If I do get it running and …

2002 mercury outboard Not rated yet
I'm having trouble starting my outboard engine on my boat. There is fuel in it, spark plugs are new, oil is full. It seems as though all obvious reasons …

Mercury 40hp 402 Not rated yet
Hi all i have a 1982 40 hp 402 mercury.Took it out a couple of weeks ago and it broke down.. Not sure what the problem is..Has plenty of spark/fuel and …

1982 40hp 402 Mercury Not rated yet
Hey all took my boat out couple of weeks ago And it broke down....Cruising along at about 10knots it just died. And would not restart.call vmr get towed …

Mercury 60 EFI 2004. Motor over rev alarm Not rated yet
The above outboard EP system puts the motor into limp mode when engine revs get up to around 3,000 revs. This only happens when the boat is in the water …

Mercury stop running and wont start Not rated yet
Ran my outboard merc for a few hours in rough conditions. When I got pack too the dock the motor died and noe it whont start. I checked the fuel for water …

200hp mercury runs but not charging batteries Not rated yet
2004 Mercury starts and runs but sputters and backfires under load. Also it is not charging batteries. It acts like it doesn't have enough spark. I don't …

Mercury 90 Problems Not rated yet
I need some help about the subject, Just 2 days ago, I tested the boat by keying the ignition. all I heard is just click everytime I turn on the key. …

210 h.p. mercury m2 v6 wont rev past 3000 Not rated yet
Got involved with a repo of a Sea Doo Challenger. Parts missing, bottom carb shaft frozen. Not running. Got it running, but wont run above 3000 and sounds …

Mercury 90 FourStroke EFI intermittent loss of power  Not rated yet
I have a 2008 Mercury 90 EFI on my 170 Montauk. 4 times in the past two weeks the engine loses all power but within the first 5-10 minutes but still stays …

2008 Mercury 90 EFI intermittent loss of power Not rated yet
I have a 2008 Mercury 90 EFI on my 170 Montauk. 4 times in the past two weeks when running at different speeds it feels as though the engine loses all …

1996 mercury outboard 125 2 stroke power problems Not rated yet
I have a searay boat with a 125 mercury 2 stroke.it has sat for 10 years being started once a year or so to make sure she ran. It runs flawlessly, starts …

Mercury 35 - loss in primer bulb Not rated yet
Hello I have a 1980’s mercury 35 I prime the bulb and starts right up idles well then it stalls I can keep priming the bulb and it will run fine and in …

mercruiser 120 i/o random stall and skip Not rated yet
i have an 83 mercruiser 120 i/o that will start up and run mint for about an hour or more after trolling then motor will quit and sometimes start up hard …

Old mercury 175 io  Not rated yet
It's a 1984 Mercury IO. Strong motor when she's going. 50% of the times I will run her on the water for 45 minutes and shut off in the water...when I try …

1988 mercury 60 hp outboard sudden loss of power. Not rated yet
I have a 1988 mercury 60hp. While running at full speed I began hearing a long beep. Within 30 seconds I had a sudden loss of power, then died. It started …

2005 Mercruiser 5.7 noise Not rated yet
My 2005 Mercruiser 5.7 makes a rattling come clacking noise until it gets warmed up. Change the exhaust flappers but no change. Not sure if its connected …

1983 mercury 35 hp  Not rated yet
I have 1983 mercury outboard 35hp, in idle speed will push the boat, but as soon i put it in full throttle it just rev up the motor and would not pushes …

2002 50 hp mercury runs slow but dies when trying to accelarate Not rated yet
have a 2002 50 hp mercury outboard. Always has been hard to start and to keep idleing. once i do manage to get it into gear i can only go at a slow speed. …

2001 Mercury 150 XR6.  Not rated yet
I own a Stratos 264 with a 2001 Mercury 150 XR6. Every time I try to come out of the hole the RPM's spike to around 5900 RPM's. Is it blowing out of the …

1989 mercury 200 Not rated yet
I am having trouble with my mercury engine, when I start out the engine runs great I have ran it up to 2hrs without a problem. Then when I stop to fish …

Firing problems on 25hp Mercury two stroke Not rated yet
The motor wasn't idling properly, it would rev up in the neutral position and run high when in forward accelerated position. I was waiting to put boat …

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Mercruiser 5.7 V8 petrol 260hp Not rated yet
My fresh water header tank loses about one litre of water after each trip. What could be the problem? The motor runs at the correct temperature and does …

1995 Mercury 115 HP Fuel Primer Bulb Not rated yet
The primer bulb on the 1995 Mercury outboard was replaced last year with the standard Mercury primer bulb. Usually the night before I go fishing, I pump …

2007 Tracker Tunda - 200 Mercury Optimax Voltage Issue Not rated yet
I recently swapped batteries on my boat and am now having issues with the voltage meter gauge stuck up around 15V even with the power disconnected. When …

Mercury 1989 50 hp 3 Cylinder Blows Switch box Not rated yet
Bought a 1989 boat ran great for a year. Blew the switch box, it also had a melted rectifyer. I ordered and replaced the Stator, trigger, Switch box, rectifyer …

Mercruiser 305 Engine cuts out Not rated yet
Mercruiser 305 cuts out at 3500 rpm, when throttle pulled back engine returnes to normal. Changed fuel pump, new carb kit, swapped all electronics with …

4.3 mercruiser won't start Not rated yet
My inboard/outboard 4.3 mercruiser works intermittently. Starts sometimes other times it clicks and won't start. Is this a starter issue? or something …

2001 Mercruiser 3.0L lost half the electrical systems Not rated yet
Boat was running just fine, tried to start it after a week away from the lake and it cranks but does not turn over. Then noticed no movement from the …

2001 4.3 mercruiser will not turn over Not rated yet
I have replaced the battery and gone through all visiable fuses and they look good. The horn, blower, and bilge all work. The instrument panel does not …

mercruiser 4.3 stalls after shifting to forward Not rated yet
i have an inboard mercruiser 4.3 lx i have no problem turning on the engine and increasing the rpm in neutral, but when i put the boat in the water and …

2007 mercury optimax 90 hp will not go in reverse Not rated yet
I bought my 2007 mercury optimax 90 new in 2007. Warranty is expired and it recently got very difficult to shift to reverse. I took apart the control …

1999 9.9 mercury 2 stroke has weak spark Not rated yet
first the motor i just bought had bad fuel pump,replaced that. now it has a weak spark. replaced plugs and wires plugs fire is very weak tested stator …

Winterize an OMC 120 hp Mercury  Not rated yet
How do I winterize a omc 120 hp Mercury with outdrive. New to boating and would like useful info on storing boat for winter and any maint. tips would …

Mercruiser tachometer Not rated yet
tach frequently "buries" itself or shows rpm far above actual engine speed. returns to correct reading after hitting a wave or a change in the trim - usually …

1999 7.4L Mercruiser with Vapor Lock problem Not rated yet
Hello, I have a 1999 Chapparal with a 7.4L MPI engine. My engine has only 135 hrs since I do not feel compfortable taking the boat out very often. When …

2001 yr. 225 mercury optimax 2 stroke motor Not rated yet
i posted an article about hard to get on plane with a tr 21 triton and this motor also additional comments i forgot about at the time is when i load this …

Mercruiser 4.3L  Not rated yet
I just bought a Bayliner with the mercruiser engine. Last week I wanted to try it and went to a lake but it did not have any force and did not speed at …

60hp 4 stroke Mercury will not idle down Not rated yet
I had a problem with my 60hp 4 stroke Mercury Bigfoot. Motor would not idle down and not shift into neutral. Local dealership found a tar like residue …

470 mercruiser trim cylinder hook-up Not rated yet
I have a 1982 Larson w the 470 mercruiser and I purchased a set of trim cylinder that have the connectors at the bottom of the cylinder and do not know …

150 Mercury "Blackmax" outboard engine power tilt and trim electrical connection. Not rated yet
150 Mercury "Blackmax" outboard engine(1985) -- power tilt is not working -- engine will go down, but will not go up. Makes a clicking noise when switch …

Mercury 115hp 1998 Saltwater 2 stroke 4 cylinder Not rated yet
Motor wont go over 4000rpm 25 mph on flat water . every now and again surges up to 5500 for a few seconds.reduce acceleration manually then increase same …

6hp mercury seizes up after 15 minutes Not rated yet
Just got a jon boat with a 6hp mercury 2 stroke. Runs fine for about 15 minutes, then dies. Can't pull to start up again until it cools down. Then repeats …

4 cylinder I/O Mercruiser 1987 Sea Ray Seville Shift Problems Not rated yet
I have a 1987 Sea Ray Seville with a 4 cylinder I/O Mervruiser. When I put in the water for the season a few weeks ago, all seemed okay. A couple of …

5.0 Mercruiser problems 20' maxum Not rated yet
I am buying a boat from my father. Last night we took the boat out on the river to give it it's first trial run of the year. The boat started fine and …

Mercruiser - Port Engine Issue 1988 Sundancer Searay Not rated yet
I can't get my port-side engine to stay running. A while back I thought I might have some bad gas, but the problem seemed to straighten itself out. I let …

Mercruiser shifting problems Not rated yet
I have alpha one mercruiser and it will not shift in reverse and forward. I can get one or the other but not both. Tried every way possible to adjust cable …

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0hp mercury triple cylinder 1981 sea raider water pump? Not rated yet
I have a 1981 sea raider boat with a 70hp mercury triple cylinder 2 stroke motor. It wasnt run in 2 years and i fired it up the other day on 2 year old …

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