lost power

jdon

Recruit
Joined
Apr 25, 2008
Messages
1
I have a 1993 Force 70 HP. When you give it full throtle the motor does not rev to full capacity. Feels like it is at half throttle.I do not have a tackometer but have lost approx 10 mph of speed.
 

bill70

Seaman Apprentice
Joined
Apr 29, 2008
Messages
30
Re: lost power

I actually have the same motor, with the same problem. I just bought the boat a month ago and the first time I took it out was this weekend. I wont rev higher than 3000 rpms. If I try to give it more throttle, the engine shuts off. I noticed that when I give it full throttle the flap on the intake closes completely, which is why I think the engine shuts off. It runs good and consistent, starts right up, just wont rev past 3000. When its in neutral I can rev up to 5 or 6 thousand with the fast idle lever so I know the motor is fine.
 
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