Could a Fuel Hose and Primer cause this???

[Hickpoppy]

I trailered my boat up to Keuka Lake (Finger Lake) in NY and the motor started but was running very rough and would keep stalling. Finally, I got it to idle and revved the motor back and forth between 1k and 3k. The motor seemed to be running very rich. When I tried to put it into gear , the motor would stall. Finally, I got it in gear and the motor seemed to be running fine. I got it up to about 5k rpm's and ran it there for about 5 seconds and it seemed to run out of fuel. I was at wits end, so I took the fuel hose and primer bulb off of my 9.9hp merc and the 60hp merc ran great. Could the Fuel hose really have caused this? Why?

 

[WillyBWright]

Re: Could a Fuel Hose and Primer cause this???

You bet!<br /><br />You could have leaky connectors. If gas leaks out when you squeeze the bulb at either connector, it's leaking air into it while it's running.<br /><br />Could also be the primer bulb. Some have plastic shuttle check valves that distort and fail. The good ones have springs and balls that are much more reliable. I'd get a new fuel line assembly from a dealer. Avoid the aftermarket ones like the plague. Because they Are a Plague. They don't work or last worth a you-know-what.

 

[emckelvy]

Re: Could a Fuel Hose and Primer cause this???

Had a Tempo fuel bulb with bad check valves and it drove me crazy trying to troubleshoot a 55hp Evinrude. Bulb would pump up hard as a rock but no fuel into the motor. New bulb solved the problem.