MacGregorSailors.com

I need help with this problem. My 1998 Yamaha F-50 (with carburators) keeps flooding itself, and I mean FLOOD, the crankcase fills with gas. I've already installed new floats and needle valves, the tanks are ventilated (no pressure build-up), new fuel lines,? Obviously if I remember to dis-connect the fuel line after use, this doesn't happen, but if I forget just once I'll get a flood and have to pull the boat to do an oil change. Not easy without an engine to get it to the trailer!
anybody else have this experience? I'm starting to think "fuel injection ".
Dave Mason
'01 X "Photo-Op"

Are you sure that you have the float levels set to spec? This is much more critical on outboards, as they are often left in the full tilted position. You might try remeasuring the needle-valve to float gap and if it is to spec, increase the gap a bit and see if it cures the problem. If it does not and the engine still runs fine, increase it some more. I used to have to go through this exercise with 4WD hill climbers, running street carbs.

~Rich