Fuel Cock leaking

[Easy Rider]

Originally Posted by ncff07

I'd ponder a guess its a run off for over flow gas.

No it is NOT supposed to be for that. It is WAY too high up on the carb body to be an "overflow".

Notice that the bowl where the gas sits is 2-3 inches lower, down at the bottom of the picture.

This may have something to do with the crankcase ventillation system; the fact that the hose is missing probably means that someone was screwing with it and went a little too far.......maybe accidentally drilled a hole there thinking that was where the idle mixture screw is ???

Anyhow, the gas stops when you switch it to ON because ON really is OFF when the engine is not running.

Have you looked closely with the engine running to see if there is any leakage......or if there is a slight vacume at the hole ???

[edit] There are some slight differences in carb's and plumbing from European models and North American models and California ones. Your specific one might never have had a hose there. Is there a brass screw inside that hole ?? It kind of looks like it. If so, maybe it is just loose.