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Yamaha YZ80 93-01 Wiseco Crankshaft Bottom End Rebuild Kit - WPC122


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Yamaha YZ80 93-01 Wiseco Crankshaft Bottom End Rebuild Kit – WPC122Fits;Yamaha YZ80 (1993 – 2001)Bottom End Rebuild Kit includes;crankshaft assembly, complete bottom end gasket kit, and bearingsPrecision-trued to OEM specifications and factory assembled Connecting rods are double-forged to maintain superior dimensional consistency through improved grain flowShot-peening eliminates residual stresses and smoothly blends the rod forging surfaces Corrosion-resistant surface treatment Top and bottom end rod bores case hardened to 58-62 RC to optimize bearing running surface Crank pin bearing radial running clearance is optimized to ensure maximum performance Precision honing ensures ultra-round bearing surface Precision-engineered oiling slots maximize rod strength andbearing life Double-drilled small ends provide the piston pin with extra lubrication and cooling, reducing distortion of top end due to thermal transfer from the piston Silver-coated bronze phosphor thrust washers with dimpled design increase oil retention and reduce friction between rod and washer interface Crank pin bearings are manufactured with the highest- quality hot-rolled steel — case hardened to 58-62 RC

Make Model Year
Yamaha YZ 80 1993 - 2001
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