The Wiseco Crankshaft is a premium replacement for Yamaha YZ80 models from 1993 to 2001. Designed to meet OEM specifications, this crankshaft assembly delivers superior durability, reliability, and performance for high-demand applications.

Features:

• Precision Trued: Assembled and trued to OEM specifications for perfect fit and operation.
• Double-Forged Connecting Rods: Ensure dimensional consistency and improved grain flow.
• Shot-Peening: Eliminates residual stresses and blends forging surfaces for added strength.
• Corrosion Resistance: Surface treatment protects against wear and environmental damage.
• Case-Hardened Rod Bores: Hardened to 58–62 RC for optimal bearing running surfaces.
• Optimized Bearing Clearance: Ensures maximum performance and longevity.
• Precision Honing: Provides ultra-round bearing surfaces for smooth operation.
• Oiling Slots: Enhance rod strength and maximize bearing life.
• Double-Drilled Small Ends: Improve lubrication and cooling for the piston pin.
• Silver-Coated Thrust Washers: Retain oil and reduce friction with a dimpled design.
• High-Quality Crank Pin Bearings: Manufactured from hot-rolled steel and case-hardened to 58–62 RC.

Vehicle Fitment:

Yamaha YZ80:

• 1993–2001

Part Number: 56-177_WI.CBK