2015 YAMAHA WR 450F tire pressure

INSTRUMENT AND CONTROL FUNCTIONS
3-15
1
23
4
5
6
7
8
9
10
11
12 each fork leg in direction (b).
TIPAlthough the total number of clicks of a
damping force adjusting mechanism
may not exactly match the above spec-
ifications due to small differences in
production, the actual number of clicks
always represents the entire adjusting range. To obtain a precise adjustment,
it would be advisable to check the num-
ber of clicks of each damping force ad-
justing mechanism and to modify the
specifications as necessary.
EAU14794
Front fork bleeding
WARNING
EWA10201
Always bleed both fork legs, other-
wise poor handling and loss of sta-bility may result.
When riding in extremely rough condi-
tions, the air temperature and pressure
in the front fork will rise. This will in-
crease the spring preload and harden
the front suspension. If this occurs,
bleed the front fork as follows.
1. Lift the front wheel off the ground according to the procedure on
page 6-37.TIPWhen bleeding the front fork, there
should be no weight on the front end ofthe vehicle.
2. Remove the bleed screws and al- low all of the air to escape from
each fork leg.
1. Compression damping force adjusting screwCompression damping setting:Minimum (soft):
20 click(s) in direction (b)*
Standard: 14 click(s) in direction (b)*
Maximum (hard): 0 click(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
(a)(b)
1
1DX-9-E3.book 15 ページ ２０１４年２月１７日　月曜日　午後２時２１分

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
1
2
345
6
7
8
9
10
11
12
Rear brake Check operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add specified brake fluid to specified level.
Check hydraulic system for leakage. 6-23, 6-24
Clutch Check operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary. 6-21
Throttle grip Make sure that operation is smooth.
Check throttle grip free play.
If necessary, have Yamaha dealer adjust th
rottle grip free play and lubricate cable
and grip housing. 6-18, 6-28
Control cables Make sure that operation is smooth.
Lubricate if necessary. 6-27
Drive chain Check chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary. 6-25, 6-27
Wheels and tires Check for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary. 6-18, 6-20
Shift pedal Make sure that operation is smooth.
Correct if necessary. 6-23
Brake pedal Make sure that operation is smooth.
Lubricate pedal pivoting point if necessary. 6-29
Brake and clutch levers Make sure that operation is smooth.
Lubricate lever pivoting points if necessary. 6-28
Sidestand Make sure that operation is smooth.
Lubricate pivot if necessary. 6-29
ITEM CHECKS PAGE
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-4
1
2
3
4
567
8
9
10
11
12
EAU52582
General maintenance an d lubrication chartNO. ITEM CHECKS AND MAINTENANCE JOBS INITIAL
ODOMETER
READINGS ANNUAL
CHECK
1000 km
(600 mi) or 1 month 3000 km
(1800 mi) or 3 months 5000 km
(3000 mi) or 6 months
1 *Air filter element Clean.
Replace if damaged. 
2Clutch Check operation.
Adjust or replace cable. 
3 *Front brake Check operation, fluid level and vehicle for fluid leakage.

Replace brake pads. Whenever worn to the limit
4 *Rear brake Check operation, fluid level and vehicle for fluid leakage.

Replace brake pads. Whenever worn to the limit
5 *Brake hoses Check for cracks or damage.
Check for correct routing and clamping.

Replace. Every 20000 km (12000 mi) or every two years
6 *Brake fluid Replace. Every 2 years
7 *Wheels Check runout, spoke tightness and for damage.
Tighten spokes if necessary. 
8 *Tires Check tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary. 
9 *Wheel bearings Check bearing for looseness or damage. 
10 *Swingarm Check operation and for excessive play.
Lubricate with lithium-soap-based grease. 
11 Drive chain Check chain slack, alignment and condition.
Adjust and lubricate chain wi
th a special O-ring chain
lubricant thoroughly. Every ride
12 *Steering bearings Check bearing play and steering for roughness.
Lubricate with lithium-soap-based grease. 
1DX-9-E3.book 4 ページ ２０１４年２月１７日　月曜日　午後２時２１分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
1
2
3
4
567
8
9
10
11
12
EAU21385
Checking the throttle grip free
playThe throttle grip free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha
dealer adjust it.
EAU21402
Valve clearanceThe valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU52883
TiresTires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA10442
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).

The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
1. Throttle grip free play
1
1DX-9-E3.book 18 ページ ２０１４年２月１７日　月曜日　午後２時２１分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-19
1
2
3
4
56
7
8
9
10
11
12 weight of rider, cargo, and ac-
cessories approved for this
model.WARNING
EWA10512
Never overload your vehicle. Opera-
tion of an overloaded vehicle couldcause an accident.
Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.
TIPThe tire tread depth limits may differ
from country to country. Always complywith the local regulations.Tire information
This model is equipped with tube tires.
Tires age, even if they have not been
used or have only been used occasion-
ally. Cracking of the tread and sidewall
rubber, sometimes accompanied by
carcass deformation, is an evidence of
ageing. Old and aged tires shall be
checked by tire specialists to ascertain
their suitability for further use.
WARNING
EWA10462
The front and rear tires should be of
the same make and design, other-
wise the handling characteristics of
the vehicle may be different, whichcould lead to an accident.
After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha.
Tire air pressure (measured on cold
tires):
0–90 kg (0–198 lb):Front: 150 kPa (1.50 kgf/cm
2, 22 psi)
Rear: 200 kPa (2.00 kgf/cm2, 29 psi)
Maximum load*:
90 kg (198 lb)
* Total weight of rider, cargo and ac- cessories
1. Tire sidewall
2. Tire tread depthMinimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
12
1DX-9-E3.book 19 ページ ２０１４年２月１７日　月曜日　午後２時２１分

MOTORCYCLE CARE AND STORAGE
7-4
1
2
3
4
5
67
8
9
10
11
12 2. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
3. Perform the following steps to pro- tect the cylinder, piston rings, etc.
from corrosion.
a. Remove the spark plug cap and spark plug.
b. Pour a teaspoonful of engine oil into the spark plug bore.
c. Install the spark plug cap onto the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from the spark plug, and then
install the spark plug and the
spark plug cap. WARNING! To
prevent damage or injury
from sparking, make sure to
ground the spark plug elec-
trodes while turning the en-
gine over.
[EWA10952]
4. Lubricate all control cables and the pivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
5. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0  C (30 F) or more than 30
 C (90 F)]. For more information
on storing the battery, see page
6-31.TIPMake any necessary repairs beforestoring the motorcycle.
1DX-9-E3.book 4 ページ ２０１４年２月１７日　月曜日　午後２時２１分

SPECIFICATIONS
8-2
1
2
3
4
5
6
78
9
10
11
12
2nd: 1.733 (26/15)
3rd:
1.313 (21/16)
4th: 1.050 (21/20)
5th: 0.840 (21/25)
Chassis:Frame type: Semi double cradle
Caster angle: 27.00 
Trail:
115 mm (4.5 in)Front tire:Type:With tube
Size:
80/100-21M/C 51P
Manufacturer/model: BRIDGESTONE/GRITTY-ED03 ERear tire:Type:
With tube
Size: 120/90-18M/C 65P
Manufacturer/model: BRIDGESTONE/GRITTY-ED04 E
Maximum load:
90 kg (198 lb)
* (Total weight of rider, cargo and accesso- ries)
Tire air pressure (measured on cold
tires):Loading condition:0–90 kg (0–198 lb)
Front:
150 kPa (1.50 kgf/cm
2, 22 psi)
Rear:
200 kPa (2.00 kgf/cm2, 29 psi)
Front wheel:Wheel type:Spoke wheel
Rim size:
21x1.60Rear wheel:Wheel type:Spoke wheel
Rim size:
18x2.15Front brake:Type:Single disc brake
Operation:
Right hand operation
Specified brake fluid: DOT 4Rear brake:Type:
Single disc brake
Operation: Right foot operation
Specified brake fluid: DOT 4
Front suspension:Type:Telescopic fork
Spring/shock absorber type: Coil spring/oil damper
Wheel travel: 300 mm (11.8 in)Rear suspension:Type:Swingarm (link suspension)
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel:
299 mm (11.8 in)Electrical system:Ignition system:TCI
Charging system:
AC magnetoBattery:Model:YTZ7S(F)
Voltage, capacity:
12 V, 6.0 AhHeadlight:Bulb type:Halogen bulbBulb voltage, wattage  quantity:Headlight:
12 V, 35.0 W/35.0 W  1
Tail/brake light: LED
Front turn signal light:
12 V, 10.0 W  2
1DX-9-E3.book 2 ページ ２０１４年２月１７日　月曜日　午後２時２１分