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Technical Specifications 2004-YZF-R1

Engine
Engine typeLiquid cooled, 4-stroke, forward inclined, parallel 4 cylinder, DOHC 20 valves
Displacement998 cc
Bore x stroke77.0 x 53.6 mm
Compression ratio12.4 : 1
Maximum power132 kW (180 HP) @ 12,500 rpm with direct air induction / 126.4 kW (172 HP) @ 12,500 rpm without direct air induction
Maximum torque110.1 Nm (10.9 kg-m) @ 10,500 rpm with direct air induction / 106.6 Nm (10.6 kg-m) @ 10,500 rpm without direct air induction
Lubrication systemWet sump
Fuel SystemFuel injection, motor-driven secondary throttle valves
Clutch typeWet, multiple disc
Ignition systemTCI (digital)
Starter systemElectric
Transmission systemConstant mesh, 6 speed
Primary reduction ratio65/43 1.512
Secundary reduction ratio45/17 2.647
Final transmissionChain
Ratios gearbox 1st2.533
Ratios gearbox 2nd2.063
Ratios gearbox 3rd1.762
Ratios gearbox 4th1.522
Ratios gearbox 5th1.364
Ratios gearbox 6th1.269
Chassis
ChassisDeltabox V aluminium
Front suspension systemTelescopic fork, Ø 43 mm
Front wheel travel120 mm
Rear suspension systemSwingarm (Link suspension)
Rear wheel travel130 mm
Caster angle24°
Trail97 mm
Front brakeDual floating discs, Ø 320 mm
Rear brakeSingle disc, Ø 220 mm
Front tyre120/70 ZR17M/C
Rear tyre190/50 ZR17M/C
Front rim3.5
Rear rim6
Dimensions
Overall length2,065 mm
Overall width720 mm
Overall height1,105 mm
Seat height835 mm
Wheelbase1,395 mm
Minimum ground clearance135 mm
Dry weight172 kg
Fuel tank capacity (reserve)18 L
Engine oil tank capacity3.8 L

Specifications and appearance of Yamaha products shown here are subject to change without notice and may vary according to requirements and conditions. For further details please consult your Yamaha dealer.

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