PROX Steel Exhaust Valve - Yamaha YFM660 RAPTOR/GRIZZLY (manufacturer part number: 28.2661-1). A reliable replacement for the exhaust valve for Yamaha 660 cc quads. Designed to fit into the cylinder head and ensure a seal at the valve seat, this PROX steel part allows you to refresh the valve train during an engine overhaul or replacement after wear.
Main compatibility:
- YAMAHA YFM 660 GRIZZLY CAMO 4WD (2008)
- YAMAHA YFM 660 GRIZZLY 4WD (2008)
- YAMAHA YXR 660 RHINO SPECIAL EDITION 4WD (2007)
Ideal for maintenance operations (valve clearance adjustment, replacement after marked seat or damaged stem), this valve is used as part of a cylinder head refurbishment. For safe installation, check the condition of the guides and seats, adhere to manufacturer tolerances, and perform a seating if necessary. Installation is recommended by a mechanic or an experienced DIYer equipped with the appropriate tools.
Product by PROX, catalog "Valves", aimed at quad enthusiasts concerned with engine maintenance. Check part number 28.2661-1 before ordering to ensure compatibility with your machine.
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