2015 YAMAHA WR 450F ignition

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-of f 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 . .................. 5-3
Shifting ............................................ 5-3
Tips for reducing fuel consumption ................................ 5-4
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 contro l 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 .......................................... 6-13
Cleaning the air filter element and check hose.......................... 6-14
Adjusting the engine idling
speed ......................................... 6-17
Checking the throttle grip free play ............................................ 6-18 Valve clearance ............................. 6-18
Tires ............................................... 6-18
Spoke wheels ................................ 6-20
Adjusting the clutch lever free
play ............................................. 6-21
Checking the brake lever free play ............................................. 6-22
Checking the shift pedal ................ 6-23
Brake light switches ....................... 6-23
Checking the front and rear brake pads.................................. 6-23
Checking the brake fluid level ........ 6-24
Changing the brake fluid ................ 6-25
Drive chain slack............................ 6-25
Cleaning and lubricating the drive chain .................................. 6-27
Checking and lubricating the
cables ......................................... 6-27
Checking and lubricating the throttle grip and cable ................. 6-28
Checking and lubricating the brake and clutch levers .............. 6-28
Checking and lubricating the
brake pedal................................. 6-29
Checking and lubricating the
sidestand .................................... 6-29
Lubricating the swingarm pivots .... 6-29
Checking the front fork................... 6-30
Checking the steering .................... 6-30
Checking the wheel bearings......... 6-31
Battery ........................................... 6-311DX-9-E3.book 1 ページ ２０１４年２月１７日　月曜日　午後２時２１分

3-1
1
23
4
5
6
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10
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12
INSTRUMENT AND CONTROL FUNCTIONS
EAU10452
Main switchThe main switch controls the ignition
and lighting systems. The various main
switch positions are described below.
EAU52431
ON
All electrical circui ts are supplied with
power; the meter lighting, taillight, li-
cense plate light and auxiliary light
come on, and the engine can be start-
ed. TIPThe headlight comes on automatically
when the engine is started and stays on
until the main switch is pushed to“OFF”, even if the engine stalls.
EAU52472
OFF
All electrical systems are off.
WARNING
EWA16131
Never push the main switch to
“OFF” while the vehicle is moving,
otherwise the electrical systems will
be switched off, which may result inloss of control or an accident.NOTICE
ECA17831
Make sure that the main switch is in
“OFF” with the engine turned off,
otherwise the battery may discharge
to the point that the starter motorwill not operate properly.
EAU49396
Indicator lights and warning
lights
EAU11021
Turn signal indicator light “ ”
This indicator light flashes when the
turn signal switch is pushed to the left or
right.
EAU11061
Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.1. Neutral indicator light “ ”
2. High beam indicator light “ ”
3. Turn signal indicator light “ ”
4. Engine trouble warning light “ ”
5. Fuel level warning light “ ”
1
2
3
4
5
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INSTRUMENT AND CONTROL FUNCTIONS
3-10
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234
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EAU13213
FuelMake sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, followthese instructions. 1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. Stop filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank. 3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in your eyes, see your doctor immedi-
ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU13392
NOTICE
ECA11401
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use premium unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different
brand. Use of unleaded fuel will extend
1. Fuel tank filler tube
2. Maximum fuel level
21
Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
7.2 L (1.90 US gal, 1.58 Imp.gal)
Fuel reserve amount (when the fuel
level warning light comes on): 3.0 L (0.79 US gal, 0.66 Imp.gal)
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INSTRUMENT AND CONTROL FUNCTIONS
3-18
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234
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12
visable to check the actual total number
of clicks or turns of each damping force
adjusting mechanism. This adjustment
range may not exactly match the spec-
ifications listed due to small differences
in production.
WARNING
EWA10222
This shock absorber assembly con-
tains highly pressurized nitrogen
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly.
Do not tamper with or attempt to
open the cylinder assembly.

Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.
This may cause the unit to ex-
plode due to excessive gas
pressure.

Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.

Do not dispose of a damaged or
worn-out shock absorber as-
sembly yourself. Take the shock absorber assembly to a Yamaha
dealer for any service.
EAU15306
SidestandThe sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.TIPThe built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See the following section for an expla-
nation of the ignition circuit cut-off sys-tem.)
WARNING
EWA10242
The vehicle must not be ridden with
the sidestand down, or if the sides-
tand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly and have a
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INSTRUMENT AND CONTROL FUNCTIONS
3-19
1
23
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5
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11
12 Yamaha dealer repair it if it does not
function properly.
EAU52862
Ignition circuit cut-off systemThe 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 sides-
tand 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.
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FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-3
1
2
34
5
6
7
8
9
10
11
12
Chassis fasteners Make sure that all nuts, bolts
and screws are properly tightened.
Tighten if necessary. —
Instruments, lights, signals
and switches Check operation.
Correct if necessary.
—
Sidestand switch Check operation of ignition circuit cut-off system.
If system is not working correctly, have Yamaha dealer check vehicle. 3-18
ITEM CHECKS PAGE
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5-1
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456
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11
12
OPERATION AND IMPORT ANT RIDING POINTS
EAU15952
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10272
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accidentor injury.
EAU56890
TIPThis model is equipped with:
a lean angle sensor to stop the en-
gine in case of a turnover. In this
case, the multi-function display in-
dicates error code 30, but this is
not a malfunction. Push the main
switch to “OFF” and then to “ON”
to clear the error code. Failing to
do so will prevent the engine from
starting even though the engine
will crank when pushing the start
switch.

an engine auto-stop system. The
engine stops automatically if left
idling for 20 minutes. In this case,
the multi-function display indicates
error code 70, but this is not a mal-
function. Push the start switch to
clear the error code and to restartthe engine.
EAU52906
Starting a cold engineNOTICE
ECA11043
For maximum engine life, never ac-
celerate hard when the engine iscold!
In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
The transmission is in the neutral
position.

The transmission is in gear with
the clutch lever pulled and the sid-
estand up.
See page 3-19 for more informa-
tion.
1. Push the main switch to “ON” and make sure that the engine stop
switch is set to “ ”.
The following warning lights
should come on for a few seconds,
then go off.
Fuel level warning light

Engine trouble warning light
NOTICE
ECA17782
If a warning light does not come on
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
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2
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56
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12 2. If dirt or water is visible, remove
the hose, clean it, and then install
it.
EAU52461
Adjusting the engine idling
speedThe 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.
1. Air filter check hose
1
1. Starter knob/idle adjusting screwEngine idling speed:1900–2100 r/min
1(a)
(b)
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