Fuel Cock leaking

[Easy Rider]

Originally Posted by dentheman

Well, I still think that is the normal overflow drain (with the hose missing).

You are missing the point.

Yes possible; likely even.......but there is nothing "normal" about it.

Unless the drain screw is open or something is broken, nothing should EVER come out there, if the bike is standing upright. It is a manual drain and emergency overflow, for if/when the float fails.

With the engine running, there is absolutely no functional difference between ON and PRIme. If the float and attached needle valve inside the carb are working correctly, you could leave it on PRIme all the time with no ill effect. Old bikes worked that way; ON was ON and many riders never turned them off.