Backfire when throttle closed

[Easy Rider]

Originally Posted by dan_

How do I know where my idle should be set? I prolly have it set to low because It kinda has that low thump thump.. but not really ya know?

Tough call when you don't have a lot of experience. Best I can tell you is turn it up a little at a time until it just starts to smooth out a bit and the individual thumps are hard to distinguish.

This is a case of not knowing what is enough until you find the point where it is TOO much.
If you get the feeling that the engine is racing a bit, then it is probably too high.

May God forgive me.......think about a gasoline lawn mower. Most of them idle nice and smooth when set right. For some strange reason, your GZ should sound about the same when it is set at the right speed. :whistle: