Re: heres one for you guys but why

Posted by KEB on May 17, 2006 at 19:18:53 from (207.94.27.5):

In Reply to: heres one for you guys but why posted by old on May 17, 2006 at 14:07:26:

Choke question is easy. Closing the choke only pulls more gas out of the carburetor float bowl. Since the bowl is vented to the atmosphere, closing the choke has no effect on supplying gas to the float bowl. In this case, gravity couldn't quite keep up with enough flow to run both cylinders & it was probably running way lean from the level in the bowl being low.

This is a guess, since I'm not familiar with that engine. I'd suspect that the flow from the carburetor to the two cylinders isn't even. With it running real lean, the second cylinder was probably in fact firing, but wasn't getting enough of a charge to get hot.

Do you have one of these infared thermometers? It'd be really interesting to see if the exhaust on both cylinders is at the same temperature under load.

Keith

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