2015 YAMAHA WR 450F suspension

SAFETY INFORMATION
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12 able to save yourself. Also, deadly lev-
els of carbon monoxide can linger for
hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poison-
ing, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.

Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.

Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.

Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories or cargo to your
motorcycle can adversely affect stabili-
ty and handling if the weight distribution
of the motorcycle is changed. To avoid
the possibility of an accident, use ex-
treme caution when adding cargo or accessories to your motorcycle. Use
extra care when riding a motorcycle
that has added cargo or accessories.
Here, along with the information about
accessories below, are some general
guidelines to follow if loading cargo to
your motorcycle:
The total weight of the operator, acces-
sories and cargo must not exceed the
maximum load limit.
Operation of an
overloaded vehicle could cause an
accident.
When loading within this weight limit,
keep the following in mind:

Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories are securely attached to
the motorcycle before riding.
Check accessory mounts fre-
quently.
Properly adjust the suspension for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires. Never attach any large or heavy
items to the handlebar, front
fork, or front fender. These
items, including such cargo as
sleeping bags, duffel bags, or
tents, can create unstable han-
dling or a slow steering re-
sponse.

This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection to
Yamaha manufacture parts and acces-
sories or offer other modifications for
Yamaha vehicles. Yamaha is not in a
position to test the products that these
aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
Maximum load: 90 kg (198 lb)
1DX-9-E3.book 3 ページ ２０１４年２月１７日　月曜日　午後２時２１分

SAFETY INFORMATION
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12 tie-downs or suitable straps that
are attached to solid parts of the
motorcycle, such as the frame or
upper front fork triple clamp (and
not, for example, to rubber-mount-
ed handlebars or turn signals, or
parts that could break). Choose
the location for the straps carefully
so the straps will not rub against
painted surfaces during transport.

The suspension should be com-
pressed somewhat by the
tie-downs, if possible, so that the
motorcycle will not bounce exces-
sively during transport.
1DX-9-E3.book 5 ページ ２０１４年２月１７日　月曜日　午後２時２１分

INSTRUMENT AND CONTROL FUNCTIONS
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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

PERIODIC MAINTENANCE AND ADJUSTMENT
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13 *Chassis fasteners Make sure that all nuts, bol
ts and screws are properly
tightened. 
14 Brake lever pivot
shaft Lubricate with silicone grease.

15 Brake pedal pivot
shaft Lubricate with lithium-soap-based grease.

16 Clutch lever pivot
shaft Lubricate with lithium-soap-based grease.

17 Sidestand Check operation.
Lubricate with lithium-soap-based grease. 
18 *Sidestand switch Check operation. 
19 *Front fork Check operation and for oil leakage. 
20 *Shock absorber
assembly Check operation and shock absorber for oil leakage.

21 *Rear suspension
relay arm and
connecting arm
pivoting points Check operation.

22 Engine oil Change.
Check oil level and vehicle for oil leakage. 
23 Engine oil filter
element

24 *Cooling system Check hoses for cracks of damage.
Replace if necessary.

Check coolant level and vehicle for coolant leakage. 
Change with ethylene glycol anti-freeze coolant. Every 1 year
25 *Front and rear brake
switches Check operation.

NO. 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 months1DX-9-E3.book 5 ページ ２０１４年２月１７日　月曜日　午後２時２１分

SPECIFICATIONS
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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