2014 YAMAHA WR 450F check engine

PERIODIC MAINTENANCE AND ADJUSTMENT
6-41
1
2
3
4
56
7
8
9
EAU53122
Troubleshooting charts Starting problems or poor engine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the battery.
Operate the electric starter
or the kickstarter.4. Compression
There is compression.
There is no compression.
The engine does not start. Have a
Yamaha dealer check the vehicle. Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
DryWet
Operate the electric starter or the
kickstarter. The engine does not start.
Check the ignition.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
1DX-9-E2.book 41 ページ ２０１３年２月２６日　火曜日　午後２時３４分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-42
2
3
4
567
8
9
Engine 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
used 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-E2.book 42 ページ ２０１３年２月２６日　火曜日　午後２時３４分

MOTORCYCLE CARE AND STORAGE
7-4
2
3
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5
678
9
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
3. Perform the following steps to pro- tect the cylinder, piston rings, etc.
from corrosion.
a. Remove the spark plug cap and spark plug.
b. Pour a teaspoonful of engine oil into the spark plug bore.
c. Install the spark plug cap onto the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from the spark plug, and then
install the spark plug and the
spark plug cap. WARNING! To
prevent damage or injury
from sparking, make sure to
ground the spark plug elec-
trodes while turning the en-
gine over.
[EWA10951]

4. Lubricate all control cables and the pivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
5. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 C (30 F) or more than 30
 C (90 F)]. For more information
on storing the battery, see page
6-30.
TIPMake any necessary repairs beforestoring the motorcycle.
1DX-9-E2.book 4 ページ ２０１３年２月２６日　火曜日　午後２時３４分

INDEXAAir filter element and check hose, cleaning .................................................6-14
Auxiliary light bulb, replacing ...................6-35BBattery......................................................6-30
Brake and clutch levers, checking and lubricating ..............................................6-27
Brake fluid, changing ...............................6-24
Brake fluid level, checking .......................6-23
Brake lever .................................................3-8
Brake lever free play, checking ................6-21
Brake light switches .................................6-22
Brake pedal ................................................3-9
Brake pedal, checking and lubricating .....6-28CCables, checking and lubricating .............6-27
Care ...........................................................7-1
Catalytic converter ...................................3-11
Clutch lever ................................................3-8
Clutch lever free play, adjusting ...............6-20
Coolant.....................................................6-12DDimmer switch ...........................................3-7
Drive chain, cleaning and lubricating .......6-26
Drive chain slack ......................................6-25EEngine break-in ..........................................5-4
Engine idling speed..................................6-17
Engine oil and oil filter element ..................6-8
Engine, starting a warm .............................5-3
Engine stop switch .....................................3-7
Engine trouble warning light.......................3-2
FFront and rear brake pads, checking ....... 6-23
Front fork, adjusting ................................. 3-14
Front fork, bleeding.................................. 3-15
Front fork, checking ................................. 6-29
Fuel.......................................................... 3-10
Fuel consumption, tips for reducing........... 5-4
Fuel level warning light .............................. 3-2
Fuel tank breather hose........................... 3-11
Fuel tank cap ............................................. 3-9
Fuse, replacing ........................................ 6-32HHandlebar switches ................................... 3-7
Headlight bulb, replacing ......................... 6-32
High beam indicator light ........................... 3-2
Horn switch ................................................ 3-7IIdentification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-19
Indicator lights and warning lights ............. 3-1KKickstarter................................................ 3-12LLicense plate light bulb, replacing ........... 6-35MMain switch ................................................ 3-1
Maintenance and lubrication, periodic ....... 6-4
Maintenance, emission control system...... 6-3
Matte color, caution ................................... 7-1
Model label ................................................ 9-1
Multi-function display ................................. 3-2NNeutral indicator light ................................. 3-1
PPanel, removing and installing .................. 6-7
Parking ...................................................... 5-5
Part locations ............................................ 2-1SSafety information ..................................... 1-1
Seat ......................................................... 3-13
Shifting ...................................................... 5-3
Shift pedal ................................................. 3-8
Shift pedal, checking ............................... 6-22
Shock absorber assembly, adjusting ...... 3-16
Sidestand ................................................ 3-18
Sidestand, checking an d lubricating........ 6-28
Spark plug, checking ................................. 6-7
Specifications ............................................ 8-1
Starter knob............................................. 3-12
Starting a cold engine ............................... 5-1
Start switch................................................ 3-7
Steering, checking................................... 6-30
Steering lock ........................................... 3-13
Storage...................................................... 7-3
Supporting the motorcycle ...................... 6-36
Swingarm pivots, lubricating ................... 6-29TTail/brake light ......................................... 6-34
Throttle grip and cable, checking and lubricating ............................................. 6-27
Throttle grip free play, checking .............. 6-17
Tires ........................................................ 6-18
Tool kit....................................................... 6-2
Troubleshooting ...................................... 6-40
Troubleshooting charts............................ 6-41
Turn signal indicator light .......................... 3-1
Turn signal light bulb, replacing .............. 6-34
1DX-9-E2.book 2 ページ ２０１３年２月２６日　火曜日　午後２時３４分