2009-2011 Honda FourTrax Rancher AT TRX420FA/FPA Service Manual, Page 246Get this manual
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CENTRIFUGAL CLUTCH
ITEM Drum 1.0 Weight lining thickness Clutch spring height Clutch weight spring free length Gear 1.0 Crankshaft 0.0at drive gear STANDARD 140.0140.2 (5.5125.520) 2.0 (0.08) 3.