1996 Yamaha 50 Pro 2 stroke "no power in gear"

Onset Flats · #1 July 11th, 2009, 10:05 AM

Starts great, runs smooth, revs in neutral and in gear when out of the water but when in the water and in gear it only will rev to a low rpm. Last year I could go 35mph no I can go 8mph with the curent. Compression was near perfect. Any ideas.

cousinabe · #2 July 11th, 2009, 10:20 AM

Does pumping the primer ball help?
Could be a bad fuel pump and/or dirty carbs.
What maintain has been done?

Onset Flats · #3 July 11th, 2009, 10:33 AM

The engin was looked over last year (carbs cleaned, new filter, ect) Pumping the ball doesn't change the prob. Revs mint in neutral but as soon as I put it under a load (make it push my boat) it wont give me anything over 25% power.

MaxVon · #4 July 12th, 2009, 07:58 PM

Check your fuel feed lines. A pinhole or split can cause that condition.