2000 Johnson 40 hp

by Ryan
(Port Lavaca Texas )

Hi, I purchased my Carolina skiff last year. It came with the 2000 Johnson 40. The motor has ran flawless up until about 6 weeks ago. I started it up, and idled our of the boat ramp, and when I tried to get on plane, it bogged down and the motor started shaking. I turned off boat, started it up again, and it ran no problem for around an hour. It did it twice that day. Took it fishing again and it bogged down and did exactly same thing. I turned it off, turned it back on, and it worked fine. So I decided to take it to the boat shop. The mechanic changed the fuel line, primer bulb, cleaned carbs and changed plugs. When I took it out again it did exact same thing. I put it in neutral and reved it up to make sure lower unit wasn’t the cause. That’s when I realized it started to bog and shake around 2500-2700 rpms. Every time. I asked a buddy and he said the neutral safety switch it keeping it from running correct.. anyone have any more advice to this issue?

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