2012 YAMAHA WR 450F gas type

PERIODIC MAINTENANCE AND ADJUSTMENT
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9the radiator pipe after
high-speed operation, other-
wise the cooling system is hot
and cause burns. Always let the
engine oil cool down sufficient-
ly before removing the oil tank
cap.
[EWA16140]

NOTICE: Do not op-
erate the vehicle until you know
that the engine oil level is suffi-
cient.
[ECA10011]

TIPThe engine oil should be above theminimum level mark. 4. Remove the engine oil check bolt
and its gasket, and then check the
engine oil level.
TIPThe engine oil should be below the brimof the check bolt hole. 5. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the brim of the engine oil check
bolt hole.
1. Oil tank cap
1
1. Oil tank cap
2. Dipstick
3. Minimum level mark
312
1. Engine oil check bolt
2. Gasket
1. Engine oil check bolt hole
21
1
1DX-9-E0.book 9 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

PERIODIC MAINTENANCE AND ADJUSTMENT
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9with solvent, and then squeeze the
remaining solvent out.
WARNING!
Use only a dedicated parts
cleaning solvent. To avoid the
risk of fire or explosion, do not
use gasoline or solvents with a
low flash point.
[EWA10431]
NOTICE:
To avoid damaging the foam
material, handle it gently and
carefully, and do not twist or
wring it.
[ECA10511]
4. Apply oil of the recommended type
to the entire surface of the sponge
material, and then squeeze the ex-
cess oil out.
TIPThe sponge material should be wet butnot dripping.
5. Pull the sponge material over the air filter element frame.TIP
Align the projection on the air filter
element frame with the hole in the
sponge material.

Apply the lithium soap base grease on the matching surface on
the sponge material.
6. Insert the air filter element into the air filter case. NOTICE: Make sure
that the air filter element is prop-
erly seated in the air filter case.
The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
[ECA10481]

TIPAlign the projection on the air filter ele-ment with the hole in the air filter case.
1. Air filter element frame
2. Sponge material
1 2
Recommended oil:
Yamaha foam air filter oil or other
quality foam air filter oil
1. Projection
2. Hole
3. Matching surface
1 23
1DX-9-E0.book 15 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

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789
SPECIFICATIONS
EAU50973
Dimensions:Overall length: 2315 mm (91.1 in)
Overall width: 825 mm (32.5 in)
Overall height: 1275 mm (50.2 in)
Seat height:
960 mm (37.8 in)
Wheelbase: 1475 mm (58.1 in)
Ground clearance: 335 mm (13.19 in)
Minimum turning radius:
2400 mm (94.5 in)Weight:Curb weight: 129 kg (284 lb)Noise and vibration level:Noise level (77/311/EEC): 80.2 dB(A)
Vibration on seat (EN1032, ISO5008): Will not exceed 0.5 m/s
2
Vibration on handlebar (EN1032, ISO5008): Will not exceed 2.5 m/s
2
Engine:Engine type: Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Single cylinder
Displacement: 449 cm
3
Bore  stroke:
95.0  63.4 mm (3.74  2.50 in) Compression ratio:
12.30 : 1
Starting system:
Electric starter and kickstarter
Lubrication system: Dry sump
Engine oil:Recommended brand:
YAMALUBE
Type: SAE 10W-40, 10W-50, 15W-40, 20W-40 or
20W-50
Recommended engine oil grade: API service SG type or higher, JASO stan-
dard MA
Engine oil quantity: Without oil filter element replacement:
0.95 L (1.00 US qt, 0.84 Imp.qt)
With oil filter element replacement: 1.00 L (1.06 US qt, 0.88 Imp.qt)Cooling system:Radiator capacity (including all routes): 1.04 L (1.10 US qt, 0.92 Imp.qt)
Air filter:Air filter element:
Wet elementFuel:Recommended fuel: Premium unleaded gasoline only
Fuel tank capacity:
7.2 L (1.90 US gal, 1.58 Imp.gal)
Fuel reserve amount: 3.0 L (0.79 US gal, 0.66 Imp.gal)Fuel injection:Throttle body:
ID mark: 1DX1 00Spark plug(s):Manufacturer/model: NGK/CR8E
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type: Wet, multiple-discTransmission:Primary reduction ratio:
2.652 (61/23)
Final drive: Chain
Secondary reduction ratio: 3.357 (47/14)
Transmission type:
Constant mesh 5-speed
Operation: Left foot operation
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 20W-50SAE 20W-40SAE 15W-40SAE 10W-40SAE 10W-50
1DX-9-E0.book 1 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

SPECIFICATIONS
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Gear ratio:1st: 2.417 (29/12)
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:
300.0 mm (11.81 in)Rear suspension:Type: Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel: 299.0 mm (11.77 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 W/35 W  1
Tail/brake light:
LED
1DX-9-E0.book 2 ページ ２０１１年１０月１０日　月曜日　午後２時１４分