PISTON KIT 88-91 YZ250 70.00, WOSSNER 8134D200 YAMAHA MX

Piston Kit 70mm Bore 69.94 Wossner 8134D200 (+2.00)

YAMAHA YZ250 1988 - 1991, WR250 1988 - 1991

Wossner forged pistons are superior in strength and design. Engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls. Elliptically designed to provide a more uniform bearing surface under piston heat expansion, eliminating localized pressure and distributing thrust loads more evenly, thereby preventing piston collapse. Made in Germany.

• Wossner Piston Yamaha YZ250 70.00 mm Bore (PN#): 8134D200
• Lock P/N: CW18
• Pin P/N: WP033
• Ring Set P/N: RSB7000 x2

Specifications:

• Display (cm3): 246
• Hub Stroke (mm): 68.00
• Clearance (mm): 0.06
• Wossner Compression Ratio: 2 stroke
• OEM Compression Ratio: 2 stroke
• Dome Volume (cm3):
• Compression Height (mm): 36.00
• Theoretical Weight (G):