YAMAHA WR 450F 2015 Owner's Guide

INSTRUMENT AND CONTROL FUNCTIONS
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3. Install the bleed screws.
4. Lower the front wheel so that it is
on the ground, and then put the
sidestand down.
EAU52893
Adjusting the shock absorber
assemblyThis shock absorber assembly is
equipped with a spring preload adjust-
ing ring, a rebound damping force ad-
justing screw, a compression damping
force adjusting bolt (for fast compres-
sion damping) and a compression
damping force adjusting screw (for
slow compression damping).NOTICE
ECA10102
To avoid damaging the mechanism,
do not attempt to turn beyond themaximum or minimum settings.
Spring preload
Spring preload adjustment should be
made by a Yamaha dealer, since this
service requires special tools and tech-
nical skills. The specified settings are
listed below.
The spring preload setting is deter-
mined by measuring distance A, shown
in the illustration. The shorter the dis-
tance A is, the higher the spring pre-
load; the longer distance A is, the lower the spring preload.
Rebound damping force
To increase the rebound damping force
and thereby harden the rebound damp-
ing, turn the adjusting screw in direction
(a). To decrease the rebound damping
force and thereby soften the rebound
damping, turn the adjusting screw in di-
rection (b).
1. Bleed screw
1
1. Distance ASpring preload:
Minimum (soft):
Distance A = 238.5 mm (9.39 in)
Standard: Distance A = 222 mm (8.74 in)
Maximum (hard): Distance A = 222 mm (8.74 in)
1
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INSTRUMENT AND CONTROL FUNCTIONS
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12 Compression damping force
Compression damping force (for fast
compression damping)To increase the compression damping
force and thereby harden the compres-
sion damping, turn the adjusting bolt in
direction (a). To decrease the compres- sion damping force and thereby soften
the compression damping, turn the ad-
justing bolt in direction (b).
Compression damping force (for slow
compression damping)To increase the compression damping
force and thereby harden the compres-sion damping, turn the adjusting screw
in direction (a). To decrease the com-
pression damping force and thereby
soften the compression damping, turn
the adjusting screw in direction (b).
TIPTo obtain a precise adjustment, it is ad-
1. Rebound damping force adjusting screwRebound damping setting:
Minimum (soft):
30 click(s) in direction (b)*
Standard: 18 click(s) in direction (b)*
Maximum (hard): 0 click(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
(a)
(b)1
1. Compression damping force adjusting bolt
(for fast compression damping)Compression damping setting (for
fast compression damping):Minimum (soft):2 turn(s) in direction (b)*
Standard:
7/8 turn(s) in direction (b)*
Maximum (hard): 0 turn(s) in direction (b)*
* With the adjusting bolt fully turned in direction (a)
1 (a)
(b)
1. Compression damping force adjusting
screw (for slow compression damping)Compression damping setting (for
slow compression damping):Minimum (soft):20 click(s) in direction (b)*
Standard:
10 click(s) in direction (b)*
Maximum (hard): 0 click(s) in direction (b)*
* With the adjusting screw fully turned in direction (a)
1 (a)
(b)
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INSTRUMENT AND CONTROL FUNCTIONS
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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
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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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INSTRUMENT AND CONTROL FUNCTIONS
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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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FOR YOUR SAFETY – PRE-OPERATION CHECKS
EAU15598
Inspect your vehicle each time you use it to make sure the vehi cle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
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
obstructions, 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. 6-13
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 brake fluid to specified level.
Check hydraulic system for leakage. 6-23, 6-24
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FOR YOUR SAFETY – PRE-OPERATION CHECKS
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Rear 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 brake fluid to specified level.
Check hydraulic system for leakage. 6-23, 6-24
Clutch Check operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary. 6-21
Throttle grip Make sure that operation is smooth.
Check throttle grip free play.
If necessary, have Yamaha dealer adjust th
rottle grip free play and lubricate cable
and grip housing. 6-18, 6-28
Control cables Make sure that operation is smooth.
Lubricate if necessary. 6-27
Drive chain Check chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary. 6-25, 6-27
Wheels and tires Check for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary. 6-18, 6-20
Shift pedal Make sure that operation is smooth.
Correct if necessary. 6-23
Brake pedal Make sure that operation is smooth.
Lubricate pedal pivoting point if necessary. 6-29
Brake and clutch levers Make sure that operation is smooth.
Lubricate lever pivoting points if necessary. 6-28
Sidestand Make sure that operation is smooth.
Lubricate pivot if necessary. 6-29
ITEM CHECKS PAGE
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FOR YOUR SAFETY – PRE-OPERATION CHECKS
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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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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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OPERATION AND IMPORTANT RIDING POINTS
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12 initially when the main switch is
pushed to “ON”, or if a warning light
remains on, see page 3-1 for the cor-
responding warning light circuit
check.
2. Shift the transmission into the neu- tral position. The neutral indicator
light should come on. If not, ask a
Yamaha dealer to check the elec-
trical circuit.
3. Turn the starter on and completely close the throttle. (See page 3-12.)
4. Start the engine by pushing the start switch or by pushing the kick-
starter lever down.
If the engine fails to start when us-
ing the start switch, release it, wait
a few seconds, and then try again.
Each starting attempt should be as
short as possible to preserve the
battery. Do not crank the engine
more than 10 seconds on any one
attempt. If the engine does not
start with the starter motor, try us-
ing the kickstarter.NOTICE
ECA17802
If the starter motor will not turn when the start switch is pushed, stop
pushing it immediately in order to
avoid placing extra load on the start-
er motor, and start the engine by us-
ing the kickstarter.TIPUse the kickstarter when the ambient
temperature is below 10
C (50 F) orwhen at high altitude.
5. When the engine is warm, turn the starter off.TIPThe engine is warm when it responds
quickly to the throttle with the starterturned off.
Starting with the kickstarter
When using the kickstarter to start the
engine, follow the procedures as de-
scribed below.1. Fold out the kickstarter lever, push it down lightly with your foot until
resistance is felt. 2. With the throttle fully closed, push
the kickstarter down lightly until the
gears engage, and then push it
down smoothly but forcefully.
WARNING
EWA16382
Do not open the throttle while kick-
ing the kickstarter lever. Otherwise,the kickstarter lever may kick back.
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