I had the boat on the water for first time today with new engine. the timing isnt totally optimized - i need some stop bushings. so i could have timing as well as carb tune issues. that said, i havent touched the carb. it is a qjet, supposedly recently rebuilt.
If i stab the throttle too quick, it will bog or hesitate. it also develops a bog above ~4000 rpm. any more throttle above 4k and it will bog till i pull back. any thoughts? can you even get jets for qjets anymore?