Gas Cap Leaks

copmagnet80cc

copmagnet80cc

New Member
On my 2 stroke engine kit, the tank vibrates real bad somtime when I get in the higher RPM's and my gas cap starts vibrating REAL bad..like it starts shaking and everything and gas starts coming out of the top..not sure if its the spring thats not strong enough or what..just wondering what I can do..
 
I've used a rubber 'O' ring under the rubber gasket in the cap. Always worked for me.
Most hardware stores should be able to help you. If possible look for an 'O' ring that is gasoline compatible. It'll last a lot longer.

Tom
 
had a few that wouldn't stop leaking - soldered shut the vent hole inside & drilled one thru top - that usually works, but can still sweat out a little when tank is full
 
2door said:
I've used a rubber 'O' ring under the rubber gasket in the cap. Always worked for me.
Most hardware stores should be able to help you. If possible look for an 'O' ring that is gasoline compatible. It'll last a lot longer.

Tom
Click to expand...

Thats a good idea..do you happen to know the diameter? If not I can find it out..thanks anyways though!
 
just noticed that some caps have a gasket with rectangular cross section, while the ones we use have a triangular cross section (I rarely look inside cap on repair bikes)

seems to make a difference
 
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