2014 YAMAHA WR 450F oil

PERIODIC MAINTENANCE AND ADJUSTMENT
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8
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6. Install the engine 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 by re- moving the bolts.
5. Remove the engine oil tank cap and the engine oil filler cap.
6. Remove the engine oil drain bolts and their gasket to drain the oil
from the oil tank and crankcase. 7. Remove the engine oil filter ele-
ment drain bolt and gasket to drain
the oil from the oil filter element.
1. Bolt
2. Engine guard2
1
1
1. Engine oil tank cap
2. Engine oil filler cap
1. Engine oil drain bolt (oil tank)
2. Gasket
1
2
21
1. Engine oil drain bolt (crankcase)
2. Gasket
1. Engine oil filter element drain bolt
2. Gasket
2121
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PERIODIC MAINTENANCE AND ADJUSTMENT
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TIPSkip steps 8–10 if the oil filter elementis not being replaced.8. Remove the oil filter element cover by removing the bolts.
9. Remove and replace the oil filter element and O-rings. 10. 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.
11. Install the engine oil drain bolts and their new gasket, and then
tighten the bolts to the specified
torques. 12. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the engine
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
1. Oil filter element cover
2. Oil filter element cover bolt
1
2
1. Oil filter element cover
2. Oil filter element
3. O-ringTightening torque:Oil filter element cover bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)1 2
3
3
3
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)
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PERIODIC MAINTENANCE AND ADJUSTMENT
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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.
13. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
14. Turn the engine off, wait a few min- utes until the oil settles, and then
check the oil level and correct it if
necessary.
15. Install the engine guard by install- ing the bolts.
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 bolt:
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
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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
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PERIODIC MAINTENANCE AND ADJUSTMENT
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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
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PERIODIC MAINTENANCE AND ADJUSTMENT
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Rear brake
WARNING
EWA15990
Improper maintenance can result in
loss of braking ability. Observe
these precautions:
Insufficient brake fluid may al-
low air to enter the brake sys-
tem, reducing braking
performance.

Clean the filler cap before re-
moving. Use only DOT 4 brake
fluid from a sealed container.

Use only the specified brake flu-
id; otherwise, the rubber seals may deteriorate, causing leak-
age.

Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.

Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vaporlock.
NOTICE
ECA17640
Brake fluid may damage painted sur-
faces or plastic parts. Always cleanup spilled fluid immediately.
As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/or brake sys-
tem leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake
fluid level goes down suddenly, have a
Yamaha dealer check the cause before
further riding.
EAU52952
Changing the brake fluid Have a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica-
tion chart. In addition, have the oil seals
of the master cylinders and calipers as
well as the brake hoses replaced every
20000 km (12000 mi) or every two
years or whenever they are damaged
or leaking.
1. Minimum level markSpecified brake fluid:
DOT 41
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PERIODIC MAINTENANCE AND ADJUSTMENT
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nuts to their specified torques.
4. Make sure that the drive chain pull- ers are in the same position, the
drive chain slack is correct, and
the drive chain moves smoothly.
EAU23025
Cleaning and l ubricating 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]

Tightening torques:
Axle nut: 125 Nm (12.5 m·kgf, 90 ft·lbf)
Locknut: 19 Nm (1.9 m·kgf, 14 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
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EAUM1652
Lubricating the swingarm
pivots The swingarm pivots must be lubricat-
ed by a Yamaha dealer at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU23272
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over.
[EWA10751]

2. While applying the front brake, push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
NOTICE
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
Recommended lubricant:Lithium-soap-based grease
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