2012 YAMAHA WR 450F check engine

PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
2
3
4
567
8
9
6. Install the oil tank cap, and then
the check bolt and its gasket.
To change the engine oil (with or
without oil filter element replace-
ment) 1. Place the vehicle on a level sur- face.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Place an oil pan under the engine to collect the used oil.
4. Remove the engine guard, the oil tank cap, the engine oil filler cap. 5. Remove the engine oil drain bolts
and their gasket to drain the oil
from the oil tank and crankcase.
6. Remove the engine oil filter ele- ment drain bolt and gasket to drain
the oil from the oil filter element.
TIPSkip steps 7–9 if the oil filter element isnot being replaced.
7. Remove the oil filter element cover by removing the bolts.
1. Engine guard
2. Oil tank cap
3. Engine oil filler cap1
2
3
1. Engine oil drain bolt (oil tank)
2. Gasket
1. Engine oil drain bolt (crankcase)
2. Gasket
21
21
1. Oil filter element drain bolt
2. Gasket
21
1DX-9-E0.book 10 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
1
2
3
4
56
7
8
98. Remove and replace the oil filter
element and O-rings.
9. Install the oil filter element cover by installing the bolts, and then tight-
en the bolts to the specified torque.
TIPMake sure that the O-rings are properlyseated.
10. Install the engine oil drain bolts and their new gasket, and then
tighten the bolts to the specified
torques.
11. Refill with the specified amount of the recommended engine oil, and
then install and tighten the oil tank
cap and the oil filler cap.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-tem have cooled down.NOTICE
ECA11620

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.

Make sure that no foreign mate-rial enters the crankcase.
12. Start the engine, and then let it idle for several minutes while checking
1. Oil filter element cover
2. Oil filter element cover bolt
1. Oil filter element cover
2. Oil filter element
3. O-ring
1
2
1 2
3
3
3
Tightening torque: Oil filter element cover bolt:10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Tightening torques: Engine oil drain bolt (oil tank):20 Nm (2.0 m·kgf, 14 ft·lbf)
Engine oil drain bolt (crank case): 20 Nm (2.0 m·kgf, 14 ft·lbf)
Engine oil filter element drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Recommended engine oil: See page 8-1.
Oil quantity: Without oil filter element replace-
ment:
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)
1DX-9-E0.book 11 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
1DX-9-E0.book 12 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
1
2
3
4
56
7
8
9
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
1DX-9-E0.book 13 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
6-17
1
2
3
4
56
7
8
9
EAU52460
Adjusting the engine idling
speed The engine idling speed must be
checked and, if necessary, adjusted as
follows.TIPA digital tachometer is needed to makethis adjustment.1. Position the digital tachometer at the ignition coil, which is located in
the spark plug cap.
2. Check the engine idling speed and, if necessary, adjust it to spec-
ification by turning the starter
knob/idle adjusting screw. To in-
crease the engine idling speed,
turn the screw in direction (a). To
decrease the engine idling speed,
turn the screw in direction (b).
TIPIf the specified idling speed cannot be
obtained as described above, have aYamaha dealer make the adjustment.
EAU21384
Checking the throttle grip free
play The 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.
1. Starter knob/idle adjusting screwEngine idling speed:1900–2100 r/min
1(a)
(b)
1. Throttle grip free play
1
1DX-9-E0.book 17 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
2
3
4
567
8
9
EAU21401
Valve clearance The 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.
EAU52880
Tires To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA10441
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
weight of rider, cargo, and ac-
cessories approved for thismodel.
WARNING
EWA10511
Never overload your vehicle. Opera-
tion of an overloaded vehicle couldcause an accident.
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
1DX-9-E0.book 18 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-26
2
3
4
567
8
9
EAU23025
Cleaning and lubricating the
drive chain The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.NOTICE
ECA10583
The drive chain must be lubricated
after washing the motorcycle, ridingin the rain or riding in wet areas.
1. Clean the drive chain with kero- sene and a small soft brush.
NOTICE: To prevent damaging
the O-rings, do not clean the
drive chain with steam cleaners,
high-pressure washers or inap-
propriate solvents.
[ECA11121]

2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a special O-ring chain
lubricant. NOTICE: Do not use
engine oil or any other lubri-
cants for the drive chain, as they may contain substances that
could damage the O-rings.
[ECA11111]

EAU23095
Checking and lubricating the
cables The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING! Damage to the outer
housing of cables may result in in-
ternal rusting and cause interfer-
ence with cable movement. Replace
damaged cables as soon as possi-
ble to prevent unsafe condi-
tions.
[EWA10711]

Recommended lubricant:
Yamaha Chain and Cable Lube or
engine oil
1DX-9-E0.book 26 ページ ２０１１年１０月１０日　月曜日　午後２時１４分