PISTON KIT 88-07 YFS200 66.00, WOSSNER 8101DA YAMAHA ATV

The Wossner 8101DA piston kit is designed for Yamaha YFS200 Blaster models from 1988 to 2006, featuring a standard 66.00 mm bore. Manufactured in Germany from high-strength forged material, this piston provides excellent durability and heat transfer efficiency. Its elliptical design promotes a uniform bearing surface during thermal expansion, helping to prevent localised pressure and reduce the risk of piston collapse. The kit includes all essential components for a reliable engine rebuild.

Features

• Forged piston construction for increased strength and thermal performance

• Enhanced heat transfer from combustion chamber to cylinder wall

• Elliptical profile distributes thrust loads evenly under expansion

• Minimises localised stress and reduces the likelihood of piston failure

• Manufactured in Germany with precision engineering

Specifications

• Bore Size: 66.00 mm

• Actual Bore Diameter: 65.94 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: 8101DA

• Lock: CW16

• Pin: WP027

• Ring Set: RSB6600 (Quantity: 2)

• Rod: P2030

• Part No.: 56-W573+000.WO

Vehicle Fitments

• Yamaha YFS200 Blaster (1988–2006)

Dispatch Times

Local Stock: Dispatches in < 24 hours

Parts showing as available at our Warehouse in Gorey ship the same business day if ordered before 1pm. 

Supplier Stock: Dispatches in 2-4 Days

Parts showing as available at our Supplier Warehouse are ordered from our supplier and delivered to us before we can dispatch. More info is available on this page under "Stock Availability".

OEM Special Order: Dispatches in 3-10 Days

This website does not have access to live stock levels from our OEM Suppliers. In most cases the parts will be available but in the case of backordered parts we will notify you. We receive parts from Yamaha in 3-4 days, All others including Honda, Suzuki, Kawasaki, Polaris please allow 7-10 days for us to receive the parts. 

Delivery Times

Ireland & Northern Ireland:

1-2 Days using GLS/An Post

Germany, France, Netherlands, Belgium:

3-5 Days using GLS/Fedex

Italy, Spain & Other EU Countries:

4-7 Days using GLS/Fedex