![]() Be aware the “gasoline” sold in America is routinely “out of spec” with regard to the actual vs. Non-ethanol fuel is always preferred for these machines. ![]() Always perfect ignition settings before making any carb changes!įor example, a weak battery or faulty charging system will absolutely compromise the ability to support a stable, reliable idle speed!Īssuming you haven’t made any carb rebuilding mistakes (which is all too common), and you’ve eliminated ignition issues, the normal suspects for a lazy, high idle are: Too much ethanol in the fuel causing an over-lean condition. Note: Ignition problems such as burned or poorly adjusted points, incorrect timing, “sticky” ignition advance mechanism or fatigued ignition advance springs can create similar symptoms. You might consider Randakk’s GL1000 Carb Rebuild VideoĪre you plagued with a bike that runs great from about 2000 RPMs and up, but refuses to idle reliably below that speed? Does it sometimes idle OK, but often “hang-up” at a higher speed and take forever to return to idle? Do you have to put a small load on the engine (by letting out the clutch a bit when stopped and in gear) to get the engine to return to idle speed? Does the idle speed seem overly sensitive to changes in ambient and operating temperature? If so, read on.
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