intake problem

[jmcgahran]

The engine idles fine on full choke. When I push the choke down it dies after 3 seconds. I got some starting fluid and as the bike was idling at full choke I sprayed a little on where the carburetor meets the cylinder. It immediately died. When I spray wd-40 on it and flick the choke lever down it runs fine. I can pick up the back tire and throttle it and it sounds great. Once the wd-40 has run off it shuts off. What's happening.http://motorbicycling.com/images/smilies/Waa.gif

[Cabinfever1977]

the gasket where the intake goes on cyclinder is not sealed,used gasket maker on gasket. put o-ring in intake to carb. put gasket maker around intake.
now no more air leak.

[brandongordon2002]

Were can i buy an o ring and does anyone know what size the o ring is? Would home depot, canadian tire, walmart, loes, any of them store have them? Thanks

[Cabinfever1977]

i got my o-ring at a hardware store(lowes has them too).
o-ring size: 5/8" I.d. (3/4" O.D.)x 1/16"wall

Brass Craft 0569