Engine and Transmission
Chassis and Dimension
Engine
- Type: 599cc liquid-cooled inline 4-cylinder; DOHC, 16 titanium valves
- Bore x Stroke: 67.0 x 42.5mm
- Compression Ratio: 13.1:1
- Fuel Delivery: Fuel Injection with YCC-T and YCC-I
- Ignition: TCI: Transistor Controlled Ignition
- Transmission: 6-speed w/multiplate slipper clutch
- Primary Reduction Ratio: 85/41 (2.073)
- Secondary Reduction Ratio: 45/16 (2.813)
- Gear Ratio - 1st Gear 31/12 (2.583)
- Gear Ratio - 2nd Gear 32/16 (2.000)
- Gear Ratio - 3rd Gear 30/18 (1.667)
- Gear Ratio - 4th Gear 26/18 (1.444)
- Gear Ratio - 5th Gear 27/21 (1.286)
- Gear Ratio - 6th Gear 23/20 (1.150)
- Final Drive: Chain
Chassis and Dimension
- Suspension/Front: 41mm inverted fork; 4-way adjustable, 4.7-in travel
- Suspension/Rear: Single shock; 4-way adjustable, 4.7-in travel
- Brakes/Front: Dual 310mm floating disc; radial-mount 4-piston calipers
- Brakes/Rear: 220mm disc; single-piston caliper
- Tires/Front: 120/70-ZR17
- Tires/Rear: 180/55-ZR17
- Length: 80.3 in
- Width: 27.6 in
- Height: 43.3 in
- Seat Height: 33.5 in
- Wheelbase: 54.3 in
- Rake (Caster Angle): 24°
- Trail: 3.8 in
- Oil Capacity (with oil filter change): 3.6 qt
- Fuel Capacity: 4.5 gal
- Fuel Economy: 40 mpg
- Wet Weight: 417 lb
Engine
- 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.
- A magnesium subframe removes weight from the rear of the motorcycle for increased mass centralization.
- Fork height adjustability and rear ride-height adjustment accommodate a great range of riders and tires.
- YCC-T 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.
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