PISTON KIT 75-81 DT400 MX 85.5, WOSSNER 8263D050 YAMAHA

YAMAHA
DT400 1975 - 1978,
MX410 1975 - 1976,

• 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-W549_0.50.WO (phoenixmotos.com)
Wossner Piston Yamaha DT400 85.50 mm Bore (PN# 8263D050)
Lock P/N CW18
Pin P/N WP042
Ring Set P/N RSC8550 X 2

Display (cm3) 398
Hub stroke (mm) 70.00
Clearance (mm) 0.08
Wossner compression Ratio: 2 stroke
OEM Compression ratio: 2 stroke
Dome volume (cm3)
Compression height (mm) 40.00
Theorectical weight (G)

1975 Yamaha DT Base 1975 Yamaha MX 400 1976 Yamaha DT Base 1976 Yamaha MX 400 1977 Yamaha DT Base 1977 Yamaha MX 400 1978 Yamaha DT Base 1978 Yamaha MX 400

1979 Yamaha DT Base 1979 Yamaha MX 400 1980 Yamaha DT Base 1980 Yamaha MX 400 1981 Yamaha DT Base 1981 Yamaha MX 400