Quote:
Originally Posted by Tomguy
It sounds like vacuum in the tank sucks fuel from your carb bowl to the tank. You can try an inline check valve @ the carb but that may make it worse (as in your fuel tank might collapse if the vacuum gets too high). Are your tank vent lines plugged in any way? You can also see if you can get a vented fuel cap (that allows air in but does not allow vapors out).
|
Tg:
A bit of objection must be raised to the above hypothesis.
1) The inlet to the float bowl is above the float level.
2) The fuel pump contains two check valves that permit flow in one direction only.
3) The tank vent system must be operating, otherwise once the engine is running, it would soon starve for lack of fuel flow.