2015 YAMAHA YZFR6F, Key Features Light, powerful, and bristling with knowledge gained from years of racing, the YZF-R6 is the most advanced production 600cc motorcycle Yamaha or anybody else has ever built. The YZF-R6 was the first production motorcycle with YCC-T® , Yamaha Chip Controlled Throttle system-for flawless response under all conditions. YCC-I®, Yamaha Chip Controlled Intake, is used on the R6 to vary intake tract length for excellent cylinder filling and a broader powerband. Back torque-limiting slipper-type clutch greatly facilitates braking/downshifting from high speed. Close-ratio 6-speed transmission delivers seamless power and maximum acceleration. Engine Features Compact, lightweight 67mm x 42.5mm, 599cc DOHC 16-valve, liquid-cooled titanium-valved four-cylinder has a compression ratio of 13.1:1, for great response. Domed pistons with valve cutouts produce a compact combustion chamber. Fuel injection mapping for the YCC-T Yamaha Chip Controlled Throttle dual-injector system complements the high compression ratio for great throttle response and reduced engine braking. YCC-I Yamaha Chip Controlled Intake electronically varies intake tract length for a broader powerband. YCC-T Yamaha Chip Controlled Throttle uses a powerful ECU and multiple sensors to provide perfect, smooth engine response and optimal power whenever the throttle is twisted under all conditions. Twin-injector fuel injection: shower-type injectors above each intake funnel help achieve optimum fuel atomization at high rpm. Slipper-type back torque-limiting clutch greatly facilitates braking and downshifting from high speed. Close-ratio six-speed transmission delivers seamless power and maximum acceleration. GP-style titanium muffler contributes to mass centralization and contains EXUP® for a broad powerband, and 02 sensor for spot-on injection and emissions compliance. Linerless, direct-plated ceramic-composite cylinder bores mean greater heat dissipation for consistent power delivery and reduced friction. Cool magnesium valve and engine covers are light and stylish. Direct-ignition coils, dual-electrode spark plugs and high-output magneto deliver extremely accurate, reliable firing. Chassis/Suspension Features A magnesium subframe removes weight from the rear of the motorcycle for increased mass centralization. Deltabox® aluminum frame incorporates GP thinking in terms of engine positioning and rigidity for the ultimate in 600-class handling. The lightweight swingarm pivots high in the frame, for increased anti-squat effect and mid-corner stability. TZ-type chain adjusters ease rear tire changes. Four-way adjustable (preload, high-speed compression, low-speed compression and rebound damping) inverted fork with 41mm tubes increases freedom in setting up for street or track use; soak up the bumps and resist bottoming when braking. Four-way adjustable (preload, high-speed compression, low-speed compression and rebound damping) piggyback rear shock deliver
