2012 YAMAHA WR 450F check engine

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

1-3
SAFETY INFORMATION
1lated or partially enclosed areas
such as barns, garages, or car-
ports.

Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories or cargo to your
motorcycle can adversely affect stabili-
ty and handling if the weight distribution
of the motorcycle is changed. To avoid
the possibility of an accident, use ex-
treme caution when adding cargo or
accessories to your motorcycle. Use
extra care when riding a motorcycle
that has added cargo or accessories.
Here, along with the information about
accessories below, are some general
guidelines to follow if loading cargo to
your motorcycle:
The total weight of the operator, acces-
sories and cargo must not exceed the
maximum load limit. Operation of an
overloaded vehicle could cause an
accident. When loading within this weight limit,
keep the following in mind:

Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories are securely attached to
the motorcycle before riding.
Check accessory mounts fre-
quently.
Properly adjust the suspension
for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
Never attach any large or heavy items to the handlebar, front
fork, or front fender. These
items, including such cargo as
sleeping bags, duffel bags, or
tents, can create unstable han-
dling or a slow steering re-
sponse.

This vehicle is not designed to
pull a trailer or to be attached to
a sidecar. Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection to
Yamaha manufacture parts and acces-
sories or offer other modifications for
Yamaha vehicles. Yamaha is not in a
position to test the products that these
aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Aftermarket Parts, Accessories,
and Modifications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories
or modifications are not suitable be-
cause of potential safety hazards to you
or others. Installing aftermarket prod-Maximum load:
90 kg (198 lb)
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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

INSTRUMENT AND CONTROL FUNCTIONS
3-2
234
5
6
7
8
9
EAU11080
High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU52390
Fuel level warning light “ ”
This warning light comes on when the
fuel level drops below approximately
3.0 L (0.79 US gal, 0.66 Imp.gal). When
this occurs, refuel as soon as possible.
The electrical circuit of the warning light
can be checked by pushing the main
switch to “ON”. The warning light
should come on for a few seconds, and
then go off.
If the warning light does not come on
initially when the main switch is pushed
to “ON”, or if the warning light remains
on, have a Yamaha dealer check the
electrical circuit.
EAU52400
Engine trouble warning light “ ”
This warning light comes on or flashes
if a problem is detected in the electrical
circuit monitoring the engine. If this oc-
curs, have a Yamaha dealer check the
vehicle. The electrical circuit of the warning light
can be checked by pushing the main
switch to “ON”. The warning light
should come on for a few seconds, and
then go off.
If the warning light does not come on
initially when the main switch is pushed
to “ON”, or if the warning light remains
on, have a Yamaha dealer check the
electrical circuit.
EAU52922
Multi-function display
WARNING
EWA12312
Be sure to stop the vehicle before
making any setting changes to the
multi-function display. Changing
settings while riding can distract the
operator and increase the risk of anaccident.1. “RST” button
2. “SLCT 1” button
3. “SLCT 2” button
4. Clock/stopwatch
5. Speedometer
6. Odometer/tripmeter
123
4
6
5
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INSTRUMENT AND CONTROL FUNCTIONS
3-11
1
23
4
5
6
7
8
9spark plug life and reduce maintenance
costs.
EAU41360
Fuel tank breather hose Before operating the motorcycle:
Check the fuel tank breather hose
connection.

Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.

Make sure that the end of the fuel
tank breather hose is not blocked,
and clean it if necessary.
TIPIf the fuel tank breather hose falls out,
reinstall it on the fuel tank cap with the
arrow mark on the one-way valve point-ed downward as shown.
EAU13433
Catalytic converter This model is equipped with a catalytic
converter in the exhaust system.
WARNING
EWA10862
The exhaust system is hot after op-
eration. To prevent a fire hazard or
burns:
Do not park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.

Park the vehicle in a place
where pedestrians or children
are not likely to touch the hot
exhaust system.

Make sure that the exhaust sys-
tem has cooled down before do-
ing any maintenance work.

Do not allow the engine to idle
more than a few minutes. Long
idling can cause a build-up ofheat.
NOTICE
ECA10701
Use only unleaded gasoline. The use
of leaded gasoline will cause unre-
pairable damage to the catalytic
1. Fuel tank breather hose
2. One-way valve
21
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INSTRUMENT AND CONTROL FUNCTIONS
3-19
1
23
4
5
6
7
8
9Yamaha dealer repair it if it does not
function properly.
EAU52861
Ignition circuit cut-off system The ignition circuit cut-off system (com-
prising the sidestand switch, clutch
switch and neutral switch) has the fol-
lowing functions.
It prevents starting when the trans-
mission is in gear and the side-
stand is up, but the clutch lever is
not pulled.

It prevents starting when the trans-
mission is in gear and the clutch le-
ver is pulled, but the sidestand is
still down.

It cuts the running engine when the
transmission is in gear and the sid-
estand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
1DX-9-E0.book 19 ページ ２０１１年１０月１０日　月曜日　午後２時１４分

INSTRUMENT AND CONTROL FUNCTIONS
3-20
234
5
6
7
8
9
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is set to “
3. Push the main switch to “ON”.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.The neutral switch may not be working correctly.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The sidestand switch may not be working correctly.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The clutch switch may not be working correctly.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
YES NO YES NO YES NO
If a malfunction is noted, have a Yamaha
dealer check the system before riding.
WARNING
”.
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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