Hi All
My pontoon has a 2004 Yamaha F50 4 stroke engine. The engine started up and idled fine, but when I went to give it some gas the engine sounded like it wanted to stall. This is when it's not in gear. I had to feather the throttle up to get it to go to higher RPMs.
It was also running rough and mis-firing a bit under load (in gear and cruising at around 2000-3000rpm - hard to know exactly as the tach is not working either....that's another problem).
I thought it may have been bad gas or may have got some water in the gas (the tank was at <1/4 full and was in there all winter - I did use Sta-bil when I winterized it). I put about 6 gallons of new 93 octane in it and also about 6 oz of Heet to see if that would clear up the issue.
It didn't.
Still have mis-firing and runs rough at 2500-3200 rpm while in gear.
Do you think it still could be the gas that's in there or do I have something else I need to look into?
Thanks for the advice.
My pontoon has a 2004 Yamaha F50 4 stroke engine. The engine started up and idled fine, but when I went to give it some gas the engine sounded like it wanted to stall. This is when it's not in gear. I had to feather the throttle up to get it to go to higher RPMs.
It was also running rough and mis-firing a bit under load (in gear and cruising at around 2000-3000rpm - hard to know exactly as the tach is not working either....that's another problem).
I thought it may have been bad gas or may have got some water in the gas (the tank was at <1/4 full and was in there all winter - I did use Sta-bil when I winterized it). I put about 6 gallons of new 93 octane in it and also about 6 oz of Heet to see if that would clear up the issue.
It didn't.
Still have mis-firing and runs rough at 2500-3200 rpm while in gear.
Do you think it still could be the gas that's in there or do I have something else I need to look into?
Thanks for the advice.
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