Misfire on 2012 mercury 115

by John
(Cleveland, ohio)

We got in the water today and had a bad misfire. We pulled the boat back out of the water and did some troubleshooting. I found the miss is on numbers 3 and 4. Just wondering if there is something that would cause me to loose both cylinders at once. I have switched fuel injectors, coil packs, and spark plugs from the bad cylinders to the good ones hoping the problem would follow. But it didn't. Checked the oil level and found it was low. Added oil to propped level and checked again. Still missing. Was hoping there is a safety for low oil pressure that puts motor into a limp mode. If there is how do you get it back out of limp mode?

Click here to post comments