2018 YAMAHA YFZ450R wheel

9-3
9
6. Put the frame on stands or blocks to raise all
wheels off the ground. (Alternatively, turn the
wheels each month to prevent the tires from
degrading in one spot.)
7. Cover the muffler outlet with a plastic bag to prevent moisture from entering it.
8. Remove the battery and fully charge it. (See page 8-42.)
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10-1
10
EBU25962
SPECIFICATIONS
Dimensions:Overall length:1795 mm (70.7 in)
Overall width: 1240 mm (48.8 in)
Overall height:
1065 mm (41.9 in)
Seat height: 810 mm (31.9 in)
Wheelbase: 1270 mm (50.0 in)
Ground clearance:
235 mm (9.3 in)
Minimum turning radius: 3600 mm (142 in)Weight:Curb weight:
184.0 kg (406 lb)Noise and vibration level:Noise level (77/311/EEC):85.9 dB(A) at 3750 r/min
Uncertainty of measurement:
3.0 dB(A)
A-weighted sound power level: 99.0 dB(A) at 3750 r/min
Uncertainty of measurement: 3.0 dB(A) Vibration on seat (EN1032, ISO5008):
Will not exceed 0.5 m/s²
Uncertainty of measurement: 0.1 m/s²
Vibration on handle (EN1032, ISO5008): Will not exceed 2.5 m/s²
Uncertainty of measurement:
0.8 m/s²
Engine:Engine type:Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Single cylinder
Displacement: 449 cm³
Bore × stroke:
95.0 × 63.4 mm (3.74 × 2.50 in)
Compression ratio:
11.8 : 1
Starting system: Electric starter
Lubrication system: Dry sumpEngine oil:Recommended brand:YAMALUBE
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10-3
10
Gear ratio:1st:
35/14 (2.500)
2nd: 30/15 (2.000)
3rd: 31/19 (1.632)
4th:
28/21 (1.333)
5th: 23/21 (1.095)Chassis:Frame type:
Aluminum die-cast and steel tube frame
Caster angle: 5.00 °
Trail: 21.0 mm (0.83 in)Front tire:Type:Tubeless
Size: AT21 x 7R10
Manufacturer/model:
MAXXIS/MS21Rear tire:Type:Tubeless
Size:
AT20 x 10R9
Manufacturer/model: MAXXIS/MS22
Loading:Maximum loading limit:100.0 kg (220 lb)
(Total weight of rider, cargo, accessories, and tongue)Tire air pressure (measured on cold tires):Recommended:
Front: 35.0 kPa (0.350 kgf/cm², 5.0 psi)
Rear:
35.0 kPa (0.350 kgf/cm², 5.0 psi)
Minimum: Front:
32.0 kPa (0.320 kgf/cm², 4.6 psi)
Rear: 32.0 kPa (0.320 kgf/cm², 4.6 psi)Front wheel:Wheel type:
Panel wheel
Rim size: 10 x 5.5ATRear wheel:Wheel type:
Panel wheel
Rim size: 9 x 8.0ATFront brake:Type:
Hydraulic disc brake
Operation: Right hand operation
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10-4
10
Specified brake fluid:DOT 4Rear brake:Type:
Hydraulic disc brake
Operation: Right foot operation
Specified brake fluid: DOT 4Front suspension:Type:Double wishbone
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel:
250 mm (9.9 in)Rear suspension:Type:Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel: 280 mm (11.0 in)Electrical system:Ignition system:
TCI
Charging system: AC magnetoBattery:Model:
YTZ7S Voltage, capacity:
12 V, 6.0 Ah
Headlight(s):Bulb type:
Krypton bulbBulb voltage, wattage × quantity:Headlight:
12 V, 30.0/30.0 W × 2
Tail/brake light:
LED
Neutral indicator light: LED
Fuel level warning light: LED
Coolant temperature warning light:
LED
Engine trouble warning light: LEDFuse:Fuse:
20.0 AEBU30403Noise and vibration levels statement (for Eu-
rope)
The figures quoted are emission levels and are not
necessarily safe working levels. Whilst there is a
correlation between the emission and exposure
levels, this cannot be used reliably to determine
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12-2
12
Model label ................................................................... 11-1NNeutral indicator light .....................................................4-1OOwner’s manual and tool kit .......................................... 8-2PParking ........................................................................... 6-4
Parking brake free play, adjusting ............................... 8-32
Parking brake lever ........................................................ 4-6
Parking on a slope ......................................................... 6-5
Part locations ................................................................. 3-1RRiding your ATV ............................................................. 7-1SSafety information .......................................................... 2-1
Seat .............................................................................. 4-10
Shifting ........................................................................... 6-2
Shift pedal ...................................................................... 4-7
Shift pedal, checking ...................................................8-39
Shock absorbers, front ................................................ 4-11
Shock absorbers, rear .................................................. 4-16
Spark arrester, cleaning ............................................... 8-25
Spark plug, checking ...................................................8-13
Specifications ............................................................... 10-1
Speed limiter .................................................................. 4-4
Start switch .................................................................... 4-3
Steering shaft, lubricating ............................................ 8-42
Storage ........................................................................... 9-2
Suspension, lubricating the upper and lower arm pivots ......................................................................... 8-41
Swingarm pivots, lubricating ........................................ 8-40
TTail/brake light ............................................................. 8-49
Throttle lever .......................................................... 4-4, 5-5
Throttle lever free play, adjusting ................................. 8-27
Tires ............................................................................... 5-5
Troubleshooting ........................................................... 8-50
Troubleshooting charts ................................................ 8-51VValve clearance ............................................................ 8-28
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-40
Wheel, installing ........................................................... 8-49
Wheel, removing .......................................................... 8-49
UBW261E0.book Page 2 Friday, May 26, 2017 9:38 AM