Big Bear racing at idle, WHY?
#11
Big Bear racing at idle, WHY?
A glowing header and backfires like that are almost always caused by running lean/hot. The choke makes the carb run rich for cold starting. With this in mind, a sticking choke would keep the idle high but, it should not be running lean. When you are fixing the stuck choke check out your pilot air screw and make sure its not set too lean. Then again, its air-cooled so the racing idle could be causing the heat problems.
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#14
Big Bear racing at idle, WHY?
parts finally came in, new gasket for bowl, heating element, air filter. put it together and same thing. idle adjustment made no difference, nor did lubing choke, or fuel/air screw. we were stumped, so I looked for the obvious, sure enough, the throttle cable was kinked, duh! she's running great now!
#15
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