I have a Johnson 35hp motor mounted to a patoon boat. The first trip to the lake, the motor started fine but had to run with the choke out to keep the motor running. When I got home I boiled the carb out but did not put a kit in it. The second trip to the lake, the motor started fine and ran great. After about 5 minutes of running 3/4 throttle, it bogged down again. This time I did not have to use the choke, but if I pushed the throttle too far it would cause the motor to bog down more. What does everyone think....ignition problem, fuel problem, head problem. Any help would be appreciated.
