Post by lain on Aug 23, 2015 13:39:38 GMT -5
This carb I have is really bugging me. I can start the bike if I use starter fluid or gas in the intake, but it won;t stay running after the start fluid/fuel runs out. While the engine is pumping the gas in the fuel line leading to the carb slowly rises closer and closer to the tank above it. The gas however does not flow through the carb. The float seems okay, nothing is clogged at all... What the heck... The tank is vented through the cap, I tried without the cap just to make sure but still the same thing. I have never seen this phenomenon before, why would gas refuse to flow through the carb but accumulate and rise in the fuel line?
The fuel petcock is manual, not vaccuum operated. The carb is very old by the way, like 15 to 25 years old. I am so frustrated, I do not understand how this carb defies physics... I mean if it wasn't able to flow why would more gas keep getting into the fuel line? I rebuilt the carb, made my own gaskets, the weird thing is there did not seem to be a single diaphragm... Maybe it is in a part you cannot remove or get to?
The fuel petcock is manual, not vaccuum operated. The carb is very old by the way, like 15 to 25 years old. I am so frustrated, I do not understand how this carb defies physics... I mean if it wasn't able to flow why would more gas keep getting into the fuel line? I rebuilt the carb, made my own gaskets, the weird thing is there did not seem to be a single diaphragm... Maybe it is in a part you cannot remove or get to?