Hot Cams Valve Exhaust Steel (8400002-1) YAMAHA YFM660 RAPTOR Finish: Yellow Chromate

Finish: Yellow Chromate

Automatic clutch-driven oiler operates only when the chain is moving to reduce oil consumption

Efficient battery-powered mower returns on its own to recharging station as needed

"Heat and Eat" kit includes 1 Large self-contained heating pouch (reusable)

Hot Cams Valve Exhaust Steel (8400002-1) YAMAHA YFM660 RAPTOR Finish: Yellow ChromateHot Cams Valve Exhaust Steel Forged from a single blank, grain flow is improved to enhance the mechanical characteristics of the valve without having to resort to welding Compatible with OEM components Induction hardened valve stem tip Precision machined valve head and seat surfaces Special PVD, CVD processes leave a (Black Nitride Coating) BrN coating that provides high micro hardness and low friction surfaces for reduced heat generation and carbon