Hey, I bought a bass boat with a 90 hp yamaha 2 stroke. Took it out and ran great for maybe 2 min, then sputtered down. Seems to run good at low rpms but when throttle is applied over 2000rpms it wont accelerate and seems to run ruff like its cutting out. I replaced fuel line, cleaned carbs...
Just got a bass boat with a 90 hp yamaha prec. blend 2 stroke. Runs great for about 20 sec wide open then stumbles and runs rough, seems to run ok at low speed but as soon as you throttle up it starts cutting out. I changed plugs and put high test gas .If you let sit , it will open up but soon...
Just got a bass boat with a 90 hp yamaha. Took it out and it ran fine for about 15 to 20 sec then started stumbling and sputtering. Turned off motor and let sit, started and run good wide open then 15 sec later, stumbles and rough running if you increase throttle but seems to run fine at low...
