PISTON KIT 83-87 YZ250 70.00, WOSSNER 8133D200 YAMAHA MXPiston kit 70mm Bore 69. 94 Wossner 8133D200 (+2. 00) 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

2016 YZ250G (YZ250G2) - Crankshaft Piston

eliminating localized pressure and distributing thrust loads more evenly

Small End Bearing

HPI Ignition kit for 1976-1977 Suzuki RM370 & 1978-1980 RM400

2002 Yamaha YZ250

Select proper Thread Lock Grade for specified applications

CAM CHAIN YZ250F 2014-21

Precision-machined

YZ 250X 2016-2022

Wiseco Pro-Lite Piston Assembly - 804M06850 68

Photos are for reference only

The deeper profile increases oil capacity by up to 100cc helps reduce oil temperature in long races especially in extreme muddy/sandy conditions where clutch abuse is most common