still having fuel problems

[MDeVito]

I am still having the problem where my fuel ball will collapse and the motor will be starving for fuel when running at higher speeds. (around 4000 - 5500 rpm) can anyone help?

 

[Joe Reeves]

Re: still having fuel problems

That could be a faulty outlet valve in the fuel primer bulb or.......<br /><br />(Anti Siphon Valve)<br />(J. Reeves)<br /> <br />Check at the built in fuel tank connection where the rubber fuel line attaches for a "Anti Siphon Valve". It will be (usually) aluminum, about 2" long, and the inner components will consist of a "Ball", a "Spring", and a "Ball Seat". These valves are notorious for sticking and causing a fuel restriction. Remove the valve if it exists, knock out the inner components which converts it to a straight through fitting, then re-install it. If you're uneasy about converting that valve to a straight through fitting, then simply replace it.

 

[MDeVito]

Re: still having fuel problems

Both the fuel ball and the anti-siphon valve are brand new. What else could it be?

 

[ReelDrag]

Re: still having fuel problems

Start with the pick-up tube and check everything from there to the motor. Maybe a kinked line under the floor. If you bought a cheap primer bulb don't assume it's good. I've had bad ones right out of the package. Get one from the dealer.

 

[93bronco]

Re: still having fuel problems

when that happened to me i found the vent tube blocked.<br />saw that happen with a portable tank also(vent not open).

 

[ob15]

Re: still having fuel problems

Is it possibly the fule line (too small) or possibly a kink or junk on the inside somewhere? As ReelDrag said, check evrything.