OEM CROSS-REFERENCE PART NUMBERS:
• 29U-11636-00-00 (piston 0.50mm OS)
• 4BD-11636-00-00 (piston 0.50mm OS, later models)
• 29U-11631-00-Y0 (piston standard)
• 4BD-11631-00-Y0 (piston standard, later models)
• 3GH-11631-00-Y0 (piston standard, alt reference)
• 29U-11610-00-00 (ring set)
• 4BD-11610-00-00 (ring set, later models)
• 29U-11633-00-00 (piston pin)
• 93450-17044-00 (circlip)
SPECIFICATIONS:
• Bore Size: 71.50mm
• Oversize: 0.50mm Over
• Standard Bore: 71mm
• Displacement: 229cc
• Bore x Stroke: 71mm x 58mm
• Engine: 4-Stroke SOHC Air-Cooled Single Cylinder
• Compression: 8.7:1
• Material: Aluminum Alloy
• Kit Contents: Piston, Rings, Wrist Pin, Circlips
COMPATIBILITY:
• 1983-1986 Yamaha Tri-Moto 225 YTM225DR
• 1986-1988 Yamaha Moto-4 225 YFM225
• 1989-1991 Yamaha Moto-4 250 YFM250
• 1992-2000 Yamaha Timberwolf 250 YFB250
• 1999-2004 Yamaha Bear Tracker 250 YFM250X
• 2005-2006 Yamaha Bruin 250 YFM250B
• 2007-2009 Yamaha Big Bear 250 YFM250B
• 1986-1987 Yamaha TT225
• 1989 Yamaha Pro Hauler YFU1
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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