I have a 1998 20 hp Mariner that runs rough at idle. When I give it throttle
sometimes it revs up fine and gets the boat on plane, other times it just bogs down and rpms won't come up and then sometimes it's runs fine with noticeable rpms changes while running. I cleaned the carb out, changed the plugs and the compression is around 110 on both cylinders. I'm pretty much convinced it's an electrical problem. Does anyone know how I can trouble shoot it. Do these motors have a stator or power pack? check the coils? Thanks for the help.
sometimes it revs up fine and gets the boat on plane, other times it just bogs down and rpms won't come up and then sometimes it's runs fine with noticeable rpms changes while running. I cleaned the carb out, changed the plugs and the compression is around 110 on both cylinders. I'm pretty much convinced it's an electrical problem. Does anyone know how I can trouble shoot it. Do these motors have a stator or power pack? check the coils? Thanks for the help.