Re: backfiring H

Posted by Bob S on April 21, 2003 at 19:48:34 from (66.227.142.201):

In Reply to: backfiring H posted by J Smith on April 21, 2003 at 17:39:53:

Since you rebuilt the carb you may not have set the float level to the correct height or set too low. A lean burning engine will backfire. Since it doesn't do it after it warms up also can be from a lean setting since a warm engine can run lean without backfiring. One way to tell if it lean is check the color of the plugs after it has been run for a hour or so. They should have a light brown color on the insulator around the center electrode not white. Lean settings will also start to backfire when put under load. You could also do a compression test when the engine is cold to see if a valve is sticking if you don't think it is the carb. Bob

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