2012 YAMAHA WR 450F air filter

TABLE OF CONTENTSSAFETY INFORMATION .................. 1-1
DESCRIPTION .................................. 2-1
Left view .......................................... 2-1
Right view ........................................ 2-2
Controls and instrument s................. 2-3
INSTRUMENT AND CONTROL
FUNCTIONS ....................................... 3-1
Main switch ..................................... 3-1
Indicator lights and warning
lights ............................................ 3-1
Multi-function display ...................... 3-2
Handlebar switches ........................ 3-7
Clutch lever ..................................... 3-8
Shift pedal ...... ............................. .... 3-8
Brake lever ..................................... 3-8
Brake pedal .................................... 3-9
Fuel tank cap .................................. 3-9
Fuel ............................................... 3-10
Fuel tank breather hose ................ 3-11
Catalytic converter ........................ 3-11
Starter knob .................................. 3-12
Kickstarter ...... ............................. .. 3-12
Steering lock ................................. 3-13
Seat .............................................. 3-13
Adjusting the front fork .................. 3-14
Front fork bleeding ........................ 3-15
Adjusting the shock absorber assembly ................................... 3-16
Sidestand ...................................... 3-18 Ignition circuit cut-o
ff system ........ 3-19
FOR YOUR SAFETY –
PRE-OPERATION CHECKS ............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS ................................. 5-1
Starting a cold engine .................... 5-1
Starting a warm engine .................. 5-2
Shifting ........................................... 5-3
Tips for reducing fuel
consumption ............................... 5-3
Engine break-in .............................. 5-4
Parking ........................................... 5-5
PERIODIC MAINTENANCE AND
ADJUSTMENT ................................... 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for the emission control system ............. 6-3
General maintenance and lubrication chart .......................... 6-4
Removing and installing the
panel ........................................... 6-7
Checking the spark plug ................. 6-7
Engine oil and oil filter element ...... 6-8
Coolant ......................................... 6-12
Cleaning the air filter element
and check hose ......................... 6-14
Adjusting the engine idling speed ........................................ 6-17 Checking the throttle grip free
play ............................................ 6-17
Valve clearance ............................ 6-18
Tires .............................................. 6-18
Spoke wheels ............................... 6-20
Adjusting the clutch lever free play ............................................ 6-20
Checking the brake lever free
play ............................................ 6-21
Checking the shift pedal ............... 6-22
Brake light switches ...................... 6-22
Checking the front and rear brake pads ................................. 6-22
Checking the brake fluid level ....... 6-23
Changing the brake fluid ............... 6-24
Drive chain slack ........................... 6-24
Cleaning and lubricating the
drive chain ................................. 6-26
Checking and lubricating the cables ........................................ 6-26
Checking and lubricating the throttle grip and cable ................ 6-27
Checking and lubricating the
brake and clutch levers ............. 6-27
Checking and lubricating the
brake pedal ................................ 6-28
Checking and lubricating the sidestand ................................... 6-28
Lubricating the swingarm pivots ... 6-28
Checking the front fork .................. 6-29
Checking the steering ................... 6-291DX-9-E0.book 1 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

2-1
12
DESCRIPTION
EAU10410
Left view
12
1, 23
4, 5 6
7810
9
11
1. Front fork compression damping force adjusting screw (page 3-14)
2. Bleed screw (page 3-15)
3. Starter knob (page 3-12)
4. Battery (page 6-30)
5. Main fuse (page 6-31)
6. Air filter element (page 6-14)
7. Engine oil check bolt (page 6-8) 8. Shift pedal (page 3-8)
9. Engine oil filler cap (page 6-8)
10.Engine oil drain bolt
(oil tank) (page 6-8)
11.Engine oil dipstick (page 6-8)
12.Front fork rebound damping force adjusting screw (page 3-14)
1DX-9-E0.book 1 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-4
2
3
4
567
8
9
EAU52580
General maintenance and lubrication chart 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
months
1* Air filter element Clean.
Replace if damaged. 
2 Clutch 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* Wheels Check runout, spoke tightness and for damage.
Tighten spokes if necessary. 
7* Tires Check tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary. 
8* Wheel bearings Check bearing for looseness or damage. 
9* Swingarm Check operation and for excessive play.
Lubricate with lithium-soap-based grease. 
10 Drive chain Check chain slack, alignment and condition.
Adjust and lubricate chain with a special O-ring chain
lubricant thoroughly. Every ride
11 * Steering bearings Check bearing play and steering for roughness.
Lubricate with lithium-soap-based grease. 
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-6
2
3
4
567
8
9
EAU53210
TIP
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.

Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years replace the internal components of the brake master cylinders and calipers, and change the brake
fluid. Replace the brake hoses every tw o years and if cracked or damaged.
24 *Front and rear
brake switches Check operation.

25 * Moving parts and
cables Lubricate.

26 * Throttle grip Check operation.
Check throttle grip free play, and adjust if necessary.
Lubricate cable and grip housing. 
27 * Lights, signals and
switches Check operation.
Adjust headlight beam.

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
months
1DX-9-E0.book 6 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
2
3
4
567
8
9
into the radiator until it is full.
7. Install the radiator cap, start the engine, let it idle for several min-
utes, and then turn it off.
8. Remove the radiator cap to check the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the bottom of the
radiator filler neck, and then install
the radiator cap.
9. Start the engine, and then check the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
EAU52932
Cleaning the air filter element
and check hose The air filter element should be cleaned
or replaced at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Clean or, if necessary, re-
place the air filter element more
frequently if you are riding in unusually
wet or dusty areas. In addition, the air
filter check hose must be frequently
checked and cleaned if necessary.
To clean the air filter element1. Open the air filter case cover by loosen the quick fastener screw
and pulling the case cover outward
as shown. 2. Unhook the holding clip, and then
pull the air filter element out.
3. Remove the sponge material from the air filter element frame, clean it
Antifreeze/water mixture ratio:1:1
Recommended antifreeze:
High-quality ethylene glycol anti-
freeze containing corrosion inhibitors
for aluminum engines
Coolant quantity: Radiator capacity (including all
routes): 1.04 L (1.10 US qt, 0.92 Imp.qt)
1. Quick fastener screw
2. Air filter case cover
1. Holding clip
2. Air filter element
12
1 2
1DX-9-E0.book 14 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
1
2
3
4
56
7
8
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
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
2
3
4
567
8
9
7. Place the holding clip in the origi-
nal position.
TIPHook the holding clip so that it contactsthe filter guide projections. 8. Close the air filter case cover, and
then tighten the quick fastener
screw.
To clean the air filter check hose 1. Check the hose at the bottom of the air filter case for accumulated
dirt or water. 2. If dirt or water is visible, remove
the hose, clean it, and then install
it.1. Hole
2. Projection
3. Air filter element (page 6-14)
1 2
3
1. Holding clip
2. Projection
1
2
1. Air filter check hose
1
1DX-9-E0.book 16 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

8-1
2
3
4
5
6
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