Mariner 45 hp full throttle cutting out

monark40 · #1 July 4th, 2005, 01:26 PM

If I go to full throttle, my engine seems to run a little rough and loose rpm. If I back off just a very little bit it acutally picks up rpm. Any body ever run into this problem. It is not the fuel pump or filter.

Moody Blue · #2 July 4th, 2005, 02:57 PM

How are you sure its not the pump or filter ? Could be the ignition/carb timing is off.

monark40 · #3 July 4th, 2005, 04:12 PM

I checked the timing. It is right on. The pump has been rebuilt. I even pumped the fuel tank priming bulb while operating the boat and no difference.