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Old 09-06-2013, 11:41 AM
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ROLLGUY ROLLGUY is offline
ROLLGUY
 
Join Date: Oct 2007
Posts: 7,229
It sounds like a rack damper adjustment is needed. When the idle speed is adjusted lower, the rack damper is now acting as the idle setting (the way I understand it). If you adjust the rack damper bolt with the idle speed lowered, you will achieve the smoothest idle. With the idle speed raised, the rack damper is not even in play (again, as I understand it). I have always lowered the idle speed first before adjusting the rack damper, and then raise the idle speed adjustment up so it is the same as the speed I adjusted the rack damper at (no higher). That way the idle is at the best quality and speed. This is all the way I understand it, and has been my experience.
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