PISTON KIT 88-07 YFS200 67.50, WOSSNER 8101D150 YAMAHA ATV

Wossner 8101D150 Piston Kit 67.50mm Bore (+1.50mm Oversize):

Wossner 8101D150 forged piston kit is a high-quality replacement component for Yamaha YFS200 Blaster models from 1988 to 2006. With a 67.50mm (+1.50mm) oversize bore, this piston is designed to maximise combustion efficiency and structural integrity. Engineered for superior heat dissipation and load distribution, its elliptical shape minimises localised pressure and the risk of piston collapse. Manufactured in Germany for performance and longevity.

Features

• Forged for increased strength and reliability

• Optimised combustion chamber heat transfer

• Elliptical design for uniform bearing surface and thrust load distribution

• Reduces risk of piston collapse under thermal stress

• Precision manufactured in Germany

Specifications

• Bore Size: 67.50 mm

• Actual Bore Diameter: 67.44 mm

• Stroke: 57.00 mm

• Displacement: 199 cm³

• Clearance: 0.06 mm

• Compression Height: 29.90 mm

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

Cross-Reference OEM Part Numbers

• Piston Kit: 8101D150

• Lock: CW16

• Pin: WP027

• Ring Set: RSB6750 (x2)

• Rod: P2030

Vehicle Fitments

• Yamaha YFS200 Blaster (1988–2006)