S&S Cycle 106-3240 Super Stock 89cc Cylinder Head Kit - .640in. Lift Springs - Winkle Black engine-valve-train-shims 1999 Yamaha YFM400F Kodiak 4x4

1999 Yamaha YFM400F Kodiak 4x4

A ported breather passageway and a machined breather window allows the air/ oil mist to flow from the flywheel cavity to the cam chest of the engine with the least possible restriction

Accordion stretch inserts on shoulder and underarm

Sprocket Teeth: 37

2000-2006 Honda TRX350TE FourTrax Rancher ES

S&S Cycle 106-3240 Super Stock 89cc Cylinder Head Kit - .640in. Lift Springs - Winkle Black engine-valve-train-shims 1999 Yamaha YFM400F Kodiak 4x4Compression release machining Must use S&S rocker boxes (PART #90 4110) if S&S compression releases are used. High port flow gives great performance now, and more later when additional upgrades are done. Heads are fully assembled with springs and valves, and are available in silver or black powder coat finish to match OEM components. Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement. Heads are machined