PISTON KIT YAM XS650 77.00, WOSSNER K8818D200-2 688cc
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This Wossner piston kit includes a set of four forged pistons with a +2.00mm oversize bore of 77.00mm, designed for Yamaha XS650 motorcycles. The pistons feature an elliptical construction for even thrust load distribution and superior heat expansion management, aiming to improve combustion heat transfer. Manufactured in Germany, this kit maintains OEM compression characteristics and fits within the standard displacement range for an approximate displacement of 679 / 688cm³. Additional specifications include a 74.00mm stroke, 0.06mm clearance, 8.40:1 OEM compression ratio, +23.40cm³ dome volume, and 29.00mm compression height. The kit includes clips (CW20), piston pin (WP068), and rings (770XDS). Part number K8818D200-2.
- SKU
- 56-W9899.200.WO
- Brand
- Wossner
- Availability
- In Stock (2)
Fitments (8)
| Make | Model | Year |
|---|---|---|
| YAMAHA | XS 650 | 1974 |
| YAMAHA | XS 650 | 1975 |
| YAMAHA | XS 650 | 1976 |
| YAMAHA | XS 650 | 1977 |
| YAMAHA | XS 650 | 1978 |
| YAMAHA | XS 650 | 1979 |
| YAMAHA | XS 650 | 1980 |
| YAMAHA | XS 650 | 1981 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 77.00mm
- Variant Id
- 259111
FULL DESCRIPTION
Wossner Piston Kit for Yamaha XS650 - 77.00mm Bore
Enhance the performance and durability of your Yamaha XS650 with this premium Wossner Piston Kit. This kit features four forged pistons designed for a +2.00mm oversized bore, bringing the bore size to 77.00mm. Wossner pistons are engineered with an elliptical design to ensure even thrust load distribution and superior heat expansion management, crucial for maximizing engine efficiency and longevity.
Manufactured in Germany, these pistons are crafted to maintain original equipment manufacturer (OEM) compression characteristics, providing a reliable upgrade for your engine. The advanced design also improves combustion heat transfer to the cylinder walls.
Key Features:
- Set of 4 high-quality forged Wossner pistons
- +2.00mm oversized bore (77.00mm) with an actual piston diameter of 76.94mm
- Elliptical construction for consistent load distribution and thermal stability
- Designed to optimize combustion heat transfer
- German engineering and manufacturing for superior quality
- Maintains OEM compression ratio
Specifications:
- Part Number: K8818D200-2
- Bore Size: 77.00mm
- Oversize: +2.00mm
- Displacement: 679 / 688cm³
- Stroke: 74.00mm
- Clearance: 0.06mm
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 8.40:1
- Dome Volume: +23.40cm³
- Compression Height: 29.00mm
Included Components:
- Piston Rings (Part Number: 770XDS)
- Piston Pins (Part Number: WP068)
- Clips (Part Number: CW20)
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