CROSS REFERENCE PART NUMBERS:
• Yamaha 64X-11631-00-91 (Standard Bore Reference)
• Yamaha 65U-11631-00-89 (Standard Bore Reference)
• Yamaha 65U-11631-02-90 (Standard Bore Reference)
• Pro-X 01.2514.100
ITEM SPECIFICATIONS:
• Component: Piston Kit (1mm Oversize)
• Piston Size: 85mm (1mm Oversize)
• Standard Bore: 84.0mm / Oversize Bore: 85mm
• Bore x Stroke: 84.0mm x 68mm (Standard)
• Displacement: 754cc (2-Cyl) / 1131cc (3-Cyl)
• Compression Ratio: 7.2:1 (760cc) / 6.0:1 (1200cc)
• Kit Contents: Piston, Ring, Wrist Pin, Circlips
• Material: Cast Aluminum Alloy Piston
• Engine: Liquid-Cooled 2-Stroke Watercraft
COMPATIBLE MODELS:
Yamaha 760cc Watercraft:
• GP 760 (1999-2000) / Wave Blaster 760 (1996-1997)
• Wave Raider 760 (1996) / Wave Runner 760 (1997-1998)
• Wave Venture 760 (1997) / XL 760 (1998-1999)
Yamaha 1200cc Watercraft and Jet Boats:
• GP 1200 (1997-1999) / XL 1200 (1998)
• Exciter 135 1200 (1998-1999) / Exciter 270 1200 (1998-1999)
• LS 2000 1200 (1999-2000) / LX 210 1200 (2003-2005) / SUV 1200 (1999-2004)
PRODUCT DETAILS:
Direct replacement 1mm oversize piston kit engineered for the Yamaha liquid-cooled 2-stroke engine used across the GP 760, Wave Blaster, Wave Raider, and related models. The 85mm oversize piston provides proper clearance for optimal ring seal and reliable 2-stroke performance in watercraft cylinders bored 1mm over standard. Kit comes complete with cast aluminum alloy piston, precision-fitted piston ring, hardened wrist pin, and retaining circlips for a top-end rebuild. Precision machined on CNC equipment using premium cast aluminum alloy for reliable sealing and consistent power delivery in watercraft applications.
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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