PISTON KIT 1997 YZ125 54.00, WOSSNER 8117DA YAMAHA MX 4XM-11631-30-A0

YAMAHA
YZ125 1997,

• 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-W693.A.WO (phoenixmotos.com)
Wossner Piston Yamaha YZ125 54 mm Bore (PN# 8117DA)
Lock P/N CW15
Pin P/N WP032
Ring Set P/N RSB5400
Rod P/N P2019

Display (cm3) 124
Hub stroke (mm) 54.50
Clearance (mm) 0.06
Wossner compression Ratio: 2 stroke
OEM Compression ratio: 2 stroke
Dome volume (cm3)
Compression height (mm) 28.00
Theorectical weight (G)

Cross reference numbers ONLY.
4XM-11631-30-A0, 693M05400