Product description

The Wiseco Crankshaft Kit - Yamaha YZ250 1999-2000 is part of the latest performance part range from Wiseco.

Crankshaft Kit from Wiseco.

Features:

• Include crankshaft, top end bearing, premium main bearings and a complete bottom end gasket set that includes all seals and gaskets needed to do the job
• Only one part number to stock and order
• Crankshafts are factory assembled and precision trued to OEM specifications
• Double-forged Wiseco connecting rods maintain superior dimensional consistency through improved grain flow
• 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 to increase oil retention and reduce friction between rod and washer interface
• Crank pin bearings are manufactured from the highest quality hot rolled steel; case-hardened to 58-62 RC
• Caged needle roller bearings provide the highest possible rpm
• Precision machined crank web
• Stroke length: 72,00 mm

To fit:

• YAMAHA YZ 250 1999 American Models
• YAMAHA YZ 250 1999 European Models
• YAMAHA YZ 250 2000 American Models
• YAMAHA YZ 250 2000 European Models

Manufacturer part number: WWPC126

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Contents

Your package will include the following:

• 1 X Wiseco Crankshaft Kit - Yamaha YZ250 1999-2000