WOSSNER 66.5mm PISTON KIT YAMAHA YFS200 BLASTER 1988-2007

The Wossner 8101D050 piston kit is engineered for Yamaha YFS200 Blaster models from 1988 to 2006, featuring a 66.50 mm bore for +0.50 mm oversize applications. Produced in Germany from high-strength forged materials, this piston ensures durability and efficient heat transfer. Its elliptical design promotes even load distribution under heat expansion, minimising localised stress and reducing the risk of piston collapse. The kit includes all necessary components for a reliable and precise engine rebuild.

Features

• Forged piston offers enhanced strength and heat resistance

• Designed for efficient combustion chamber heat dissipation

• Elliptical profile distributes thrust loads evenly during thermal expansion

• Reduces localised pressure and risk of piston deformation

• Manufactured in Germany with high precision

Specifications

• Bore Size: 66.50 mm

• Actual Bore Diameter: 66.44 mm

• Stroke: 57.00 mm

• Display Displacement: 199 cm³

• Clearance: 0.06 mm

• Compression Ratio (Wossner and OEM): 2-stroke

• Compression Height: 29.90 mm

Cross-Reference Wossner Part Numbers

• Piston Kit: 8101D050

• Lock: CW16

• Pin: WP027

• Ring Set: RSB6650 (Quantity: 2)

• Rod: P2030

• Part No.: 56-W573+050.WO

Vehicle Fitments

• Yamaha YFS200 Blaster (1988–2006)

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.