2010 New Sports Motorcycles Yamaha V-Max VMX17Liquid-cooled, 1,679cc, DOHC, 16-valve, 65°, V-4 engine has no equal in its class. The compact engine design has allowed the engineers to place the engine in the "sweet spot" of the frame to optimize handling. DOHC 4-valve "pent roof" cylinder head design provides optimum breathing efficiency for incredible engine performance. Valve actuation is via under bucket shims. Compression ratio is 11.3:1.
2010 Yamaha V-Max VMX17 New Motorcycles PartsSteel valves are used for excellent durability. Intake valves are 34mm in diameter with a 14-degree valve angle while exhaust valves are 30mm with a 15 degree valve angle. "Combination" chain and gear camshaft drive system is utilized. With this system, only the intake cams are driven by a chain (attached to the crank), the exhaust cams are driven by a gear drive off the intake cams.
2010 New Motorcycles For Sale Yamaha V-Max VMX17This design allows for more compact cylinder heads since the distance or "pitch" between the camshafts is reduced. High-performance camshafts provide incredible engine performance. Centrifugal decompression device on the exhaust cam means fast, easy starting. Automatic hydraulic cam chain tensioners reduce engine mechanical noise. Lightweight, forged, aluminium short skirt pistons help provide fast throttle response, reduced vibration and provide excellent durability.
2010 Yamaha V-Max VMX17 New Motorcycles PicturesConnecting rods are carburized and use a nut less design. The lower end "cap" of the rod is made from the same piece of material as the upper portion; this design is known as "fracture splitting". This design aids in establishing true big end roundness, greater precision in con rod dimensions and are extremely durable. Gear-driven engine counter balancer shaft is used to reduce vibration and 180-degree crankshaft design is utilized.
