Force motor stalls out above 2500rpm and won't restart?

[JBOUDREAU]

ok, I'm stumped on this one. I have a 1985 125hp Force motor. Starts up like a charm. Idles fine. When I push it to 2500rpm - 3500rpm it runs great, for about a minute, then slowly bogs down and stalls out, and will not restart for hours. The primer bulb does not collaspe, and the carbs were just taken off and cleaned 2 weeks ago, along with new coil and spark plugs. Still having the same problem. Any suggestions would be appreciated thanks.

 

[12Footer]

Re: Force motor stalls out above 2500rpm and won't restart?

You are on the right track (me thinks). It<br />sounds like fuel starvation. And since you<br />allready went through the carbs, back up to<br />the fuel pump/filter combo. Also, it wouldn't hurt to run a compression test on<br />it while it's down. The fuel pump won't <br />work very well without plenty of compression.<br />In order for the primer ball to collapse, the tank must be not be venting or pick-up tube plugged,and a strong fuel pump, drawing in fuel faster than it can be drawn from the tank.So your ok there.