2012 YAMAHA WR 450F engine coolant

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

DESCRIPTION
2-2
12
3
4
5
6
7
8
9
EAU10420
Right view
1, 23 4
6710
5
9
11
8
1. Shock absorber assembly comp ression damping force adjusting
screw (for slow compression damping) (page 3-16)
2. Shock absorber assembly compression damping force adjusting nut (for fast compression damping) (page 3-16)
3. Kickstarter (page 3-12)
4. Radiator cap (page 6-12)
5. Steering lock (page 3-13)
6. Coolant drain bolt (page 6-13) 7. Brake pedal (page 3-9)
8. Engine oil drain bolt (crankcase) (page 6-8)
9. Rear brake fluid reservoir (page 6-23)
10.Shock absorber assembly reboun
d damping force adjusting screw
(page 3-16)
11.Rear brake light switch (page 6-22)
1DX-9-E0.book 2 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

4-1
1
2
34
5
6
7
8
9
FOR YOUR SAFETY – PRE-OPERATION CHECKS
EAU15596
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11151
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided inthis manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel Check fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.
Check fuel tank breather hose for obst
ructions, cracks or damage, and check
hose connection. 3-10, 3-11
Engine oil Check oil level in oil tank.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage. 6-8
Coolant Check coolant level.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage. 6-12
Front 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 brak
e fluid to specified level.
Check hydraulic system for leakage. 6-22, 6-23
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
6-5
1
2
3
4
56
7
8
9
12 *Chassis fasteners Make sure that all nuts, bolts and screws are properly
tightened. 
13 Brake lever pivot
shaft Lubricate with silicone grease.

14 Brake pedal pivot
shaft Lubricate with lithium-soap-based grease.

15 Clutch lever pivot
shaft Lubricate with lithium-soap-based grease.

16 Sidestand Check operation.
Lubricate with lithium-soap-based grease. 
17 * Sidestand switch Check operation. 
18 * Front fork Check operation and for oil leakage. 
19 * Shock absorber
assembly Check operation and shock absorber for oil leakage.

20 * Rear suspension
relay arm and
connecting arm
pivoting points Check operation.

21 Engine oil Change.
Check oil level and vehicle for oil leakage. 
22 Engine oil filter
element Replace.

23 * 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
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-E0.book 5 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
2
3
4
567
8
9
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
13. Turn the engine off, wait a few min- utes until the oil settles, and then
check the oil level and correct it if
necessary.
14. Install the engine guard.
NOTICE
ECA11231
After changing the engine oil, make
sure to check the oil pressure as de-
scribed below.
Loosen the bleed bolt.

Start the engine and keep it
idling until oil flows out. If no oil
comes out after one minute,
turn the engine off immediately
so it will not seize. If this occurs,
have a Yamaha dealer repair the
vehicle.

After checking the oil pressure,
tighten the bleed bolt to thespecified torque.
EAU20070
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAUM1295
To check the coolant level 1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion.TIP
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.

Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to theside can result in a false reading.
2. Remove the radiator cap and check the coolant level in the radi-
ator. WARNING! Never attempt
to remove the radiator cap when
the engine is hot.
[EWA10381]

Tightening torque: Engine guard: 7 Nm (0.7 m·kgf, 5.1 ft·lbf)
1. Bleed bolt
2. GasketTightening torque:Bleed bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
21
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
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TIPThe coolant should be at the bottom of
the radiator filler neck. The level will
change with variation of engine temper-ature.3. If the coolant is below the correct
coolant level, add coolant, and
then install the radiator cap.
NOTICE: If coolant is not avail-
able, use distilled water or soft
tap water instead. Do not use
hard water or salt water since it
is harmful to the engine. If water
has been used instead of cool-
ant, replace it with coolant as
soon as possible, otherwise the
cooling system will not be pro-
tected against frost and corro-
sion. If water has been added to
the coolant, have a Yamaha
dealer check the antifreeze con-
tent of the coolant as soon as
possible, otherwise the effec-
tiveness of the coolant will be
reduced.
[ECA10472]

EAUM1315
To change the coolant 1. Place the vehicle on a level sur- face and let the engine cool if nec-
essary.
2. Place a container under the engine to collect the used coolant.
3. Remove the coolant drain bolt and its gasket, and then the radiator
cap to drain the cooling system.
WARNING! Never attempt to re-
move the radiator cap when the
engine is hot.
[EWA10381]

4. After the coolant is completely drained, thoroughly flush the cool-
ing system with clean tap water.
5. Install the coolant drain bolt and its new gasket, and then tighten the
bolt to the specified torque.
6. Pour the recommended coolant
1. Radiator cap
1. Radiator filler neck
2. Correct coolant level
1
2
1
1. Coolant drain bolt
2. GasketTightening torque:
Coolant drain bolt:10 Nm (1.0 m·kgf, 7.2 ft·lbf)
21
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
2
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567
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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
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-41
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9Engine overheating
WARNING
EWAT1040

Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the capwhile turning it counterclockwise, and then remove the cap.
TIPIf coolant is not available, tap water can be temporarily us
ed instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
1DX-9-E0.book 41 ページ ２０１１年１０月１０日　月曜日　午後２時１４分