Wössner piston A Size 68.00 with double piston rings Yamaha YZ 250 83-87

PISTON KIT 83-87 YZ250 68.00 WOSSNER 8133DA YAMAHA MX 39X-11630-00-00

PISTON KIT 68MM BORE 67.94 WOSSNER 8133DA (STD)

YAMAHA
YZ250 1983 - 1987,,,

• 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

PART NO. 56-W560+000.WO (ORO2U.COM)
WOSSNER PISTON YAMAHA YZ250 68MM BORE (PN# 8133DA)
LOCK P/N CW18
PIN P/N WP033
RING SET P/N RSB6800 X 2
ROD P/N P2048 1983 - 1989 MODELS

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
THEORECTICAL WEIGHT (G)

Cross reference numbers only.
39X-11630-00-00, 560M06800,