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Item Details
Condition:
OEM Yamaha standard-bore piston for 760cc 2-stroke non-Power Valve engines.
Piston size is 84.00 mm standard bore. Please inspect the photos carefully for the exact condition of the piston and any included components.
If this is a used piston, its actual service history and remaining service life are unknown. If it is unused/new old stock, the buyer should still verify the piston dimensions and condition before installation.
OEM Part Number:
64X-11631-00-91
Piston Size:
84.00 mm / Standard Bore
Compatibility
This OEM piston is used in various Yamaha 760cc non-Power Valve applications, including:
* Yamaha GP760 — 1997–2000
* Yamaha Wave Blaster II 760 — 1996–1997
* Yamaha Wave Raider 760 — 1996
* Yamaha WaveRunner 760 — 1997–1998
* Yamaha Wave Venture 760 — 1997
* Yamaha XL760 — 1998–1999
The same 84 mm piston part number is also cross-referenced for certain Yamaha 1200 non-Power Valve engines. (PWC Parts)
IMPORTANT: Verify the OEM part number and required bore size against your specific engine before purchasing. This is a standard-bore 84.00 mm piston and should not be assumed to fit Power Valve 66E/66V engines. (JK Watercraft Parts)
Key Features
* Genuine OEM Yamaha piston
* OEM part number 64X-11631-00-91
* 84.00 mm standard bore
* Yamaha 760cc 2-stroke application
* Non-Power Valve 64X application
* OEM replacement component
Important Installation Information
This is an engine/internal component. The cylinder should be professionally measured and inspected before installation to verify the correct piston-to-cylinder clearance and bore condition.
Piston rings should be inspected and replaced before installation, even if existing rings appear visually good.
The piston, wrist pin, circlips, and related components should be inspected before assembly. Use the correct specifications for your particular engine during installation.
What’s Included
* 1 × Yamaha OEM piston, 64X-11631-00-91
* Only the components shown in the photos are included
* Rings, wrist pin, circlips, or other components are not included unless specifically shown
Shipping & Policy
* Ships within 3 business days.
* Sold as-is unless otherwise stated.
* Buyer is responsible for verifying compatibility, bore size, and part number.
* Buyer should inspect and measure the cylinder before installation.
* Please review all photos carefully for condition and included components.
