Description
Yamaha YFS200 Blaster 88-06 Wiseco Crankshaft Bottom End Rebuild Kit – WPC105
Fits;
YAMAHA Blaster YFS200 Blaster (1988 – 2006)
Bottom End Rebuild Kit includes;
- crankshaft assembly
- complete bottom end gasket kit
- bearings
Precision-trued to OEM specifications and factory assembled Connecting rods are double-forged to maintain superior dimensional consistency through improved grain flow
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Shot-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 and bearing 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