I have a 25HP 3 cylinder engine that we have owned since new. We have never had a single issue with this engine except the initial start up after sitting for the winter. Once it runs once, it's good for the season. Anyway we have got the boat back into the water up at the cottage and the engine starts right up when cold and runs great for the first 20 minutes or so. I can get to a location to fish, shut it down and then restart after a half hour or so. At this point I cannot give it more than 1/4 to 1/3 throttle or the engine falls flat on its face. Absolutely no power and sputtering. The engine never quits or stalls, but no power. I have replaced the plugs, checked the wires, and I do have spark at all three cylinders under a crank test. The plugs all look clean and dry. I changed the fuel filter, a few fuel lines, check the screens on the fuel pumps (2) and checked the coils per the service manual and all 3 have exact same readings. I'm at a loss here. The only other thing I can think of is that one or more of my coils is failing under load or the power pack is failing once it warms up.
Anyone have any ideas or similar issues?
Johnson 25 Outboard MFG. 10/1998
Model #J25RMECA
Serial # G04414368
Anyone have any ideas or similar issues?
Johnson 25 Outboard MFG. 10/1998
Model #J25RMECA
Serial # G04414368