2003 YAMAHA YZF-R1 tires

SPECIFICATIONS
8-2
8
Cooling system capacity
(total amount)
2.45 L
Air filterOil-coated paper element
Fuel
Type PREMIUM UNLEADED
GASOLINE ONLY
Fuel tank capacity 17 L
Amount remaining when the fuel
level warning light comes on 3.3 L
Electronic fuel injection
ModelINP-731/4
Manufacturer NIPPON INJECTOR
Spark plug
Manufacturer/model NGK / CR9EIA 9 or
DENSO / IU27D
Gap 0.8–0.9 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 1.581
Secondary reduction system Chain drive
Secondary reduction ratio 2.688
Number of drive chain
sprocket teeth (front/rear) 16/43
Transmission type Constant-mesh 6-speed
Operation Left footGear ratio
1st 2.500
2nd 1.842
3rd 1.500
4th 1.333
5th 1.200
6th 1.115
Chassis
Frame type Diamond
Caster angle 24°
Trail 103 mm
Tires
Front
Model Tubeless tire
Size 120/70 ZR17 M/C (58W)
Manufacturer/
model Michelin / Pilot SPORT E
Dunlop / D208FL
Rear
Model Tubeless tire
Size 190/50 ZR17 M/C (73W)
Manufacturer/
model Michelin / Pilot SPORT
Dunlop / D208L
U5PWE1.book Page 2 Monday, July 8, 2002 10:28 AM

SPECIFICATIONS
8-3
8
Maximum load* 202 kg
Tire air pressure
(measured on cold tires)
Up to 90 kg*
Front 250 kPa (2.50 kgf/cm
2, 2.50 bar)
Rear 250 kPa (2.50 kgf/cm2, 2.50 bar)
90 kg–maximum*
Front 250 kPa (2.50 kgf/cm2, 2.50 bar)
Rear 290 kPa (2.90 kgf/cm2, 2.90 bar)
High-speed riding
Front 250 kPa (2.50 kgf/cm2, 2.50 bar)
Rear 250 kPa (2.50 kgf/cm2, 2.50 bar)
* Total weight of rider, passenger, cargo and accessories
Wheels
Front
Type Cast wheel
Size 17 M/C × MT 3.50
Rear
Type Cast wheel
Size 17 M/C × MT 6.00Brakes
Fr o n t
Type Dual disc brake
Operation Right hand
Fluid DOT 4
Rear
Type Single disc brake
Operation Right foot
Fluid DOT 4
Suspension
Front Telescopic fork
Rear Swingarm (link suspension)
Spring/shock absorber
Front Coil spring / oil damper
Rear Coil spring / gas-oil damper
Wheel travel
Front 120 mm
Rear 130 mm
Electrical system
Ignition system T.C.I. (digital)
Charging system
Type A.C. magneto
Standard output 14 V, 32 A@ 5,000 r/min
U5PWE1.book Page 3 Monday, July 8, 2002 10:28 AM

INDEX
SSafety information.................................... 1-1
Seats ..................................................... 3-17
Passenger seat ................................ 3-17
Rider seat ........................................ 3-17
Shifting .................................................... 5-2
Shift pedal ............................................. 3-13
Shift points (for Switzerland only)............. 5-3
Shock absorber assembly, adjusting ..... 3-21
Sidestand .............................................. 3-24
Sidestand, checking and lubricating....... 6-32
Spark plugs, checking ............................. 6-8
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch ............................................ 3-12
Steering, checking ................................. 6-33
Storage.................................................... 7-4
Storage compartment ............................ 3-19
Supporting the motorcycle ..................... 6-40TTachometer ........................................... 3-11
Tail/brake light ....................................... 6-38
Throttle cable free play, adjusting .......... 6-20
Throttle grip and cable, checking and
lubricating............................................ 6-31
Tires ...................................................... 6-21
Tool kit..................................................... 6-1
Troubleshooting..................................... 6-45
Troubleshooting charts .......................... 6-46
Turn signal indicator lights ....................... 3-2
Turn signal light bulb, replacing ............. 6-39
Turn signal switch .................................. 3-12
VValve clearance, adjusting .................... 6-20
Vehicle identification number................... 9-1WWheel bearings, checking ..................... 6-34
Wheel (front) ......................................... 6-41
Installing .......................................... 6-42
Removing ........................................ 6-41
Wheel (rear) .......................................... 6-43
Installing .......................................... 6-44
Removing ........................................ 6-43
Wheels .................................................. 6-24
U5PWE1.book Page 2 Monday, July 8, 2002 10:28 AM