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Too loose: the chain will eventually start to wear against the primary cover (slapping) sometimes damaging the primary cover as well as the chain; difficult shifting; excessive noise.
Too tight: excessive noise (whirring); premature bearing failures; premature primary chain failure; premature sprocket failure.
You may want to look into an automatic primary chain tensioner. After installation, they require minimum monitoring to keep your primary chain properly adjusted. There are two popular models: one works on mechanical springs to keep tension on the adjusting shoe, the other has a hydraulic lifter-type mechanism that also keeps the adjusting shoe in contact with the primary chain.
I personally have the M6 tensioner which is the mechanical spring type, as the hydraulic model is not available for Sporties. It makes shifting alot easier as well as minimal attention once installed. Look into it....
Good luck, Wes.
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1990 FATSTER - 16" wheels front/back, Fat-Bob tanks/dash, Koni shocks, Ness taildragger fenders, Ness wide-glide billet trees, Storz steering dampener, PM calipers, full-floater rotors, SBS brake pads, Fat-Boy lights, 1200 10:1 pistons, Total Seal Gapless rings, Andrews V6 cams, Crane adj. pushrods, mod. CV carb., custom Ram-Air filter, Crane Single-Fire, Accel coils, Thunderheader (from Sonny Barger), Barnett Extra-Plate clutch, Balance Master, Jagg oil cooler, Spyke Krank Vent,....
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