YAMAHA YZ85 2007 Owner's Guide
Manufacturer: YAMAHA, Model Year: 2007, Model line: YZ85, Model: YAMAHA YZ85 2007Pages: 82, PDF Size: 3.65 MB
Page 31 of 82
INSTRUMENT AND CONTROL FUNCTIONS
3-8
3 2. To increase the compression
damping force and thereby harden
the compression damping, turn the
adjusting screw on each fork leg in
direction (a). To decrease the
compression damping force and
thereby soften the compression
damping, turn the adjusting screw
on each fork leg in direction (b).
3. Install the rubber cap.
CAUTION:
ECA10100
Never attempt to turn an adjusting
mechanism beyond the maximum orminimum settings.
NOTE:Although the total number of clicks of a
damping force adjusting mechanism
may not exactly match the above spec-
ifications due to small differences in
production, the actual number of clicks
always represents the entire adjusting
range. To obtain a precise adjustment,
it would be advisable to check the num-
ber of clicks of each damping force ad-
justing mechanism and to modify thespecifications as necessary.
EAU14790
Front fork bleeding When riding in extremely rough condi-
tions, the air temperature and pressure
in the front fork will rise. This will in-
crease the spring preload and harden
the front suspension. If this occurs,
bleed the front fork as follows.
1. Elevate the front wheel by placing
a suitable stand under the engine.NOTE:When bleeding the front fork, there
should be no weight on the front end ofthe vehicle.
2. Remove the bleed screws and al-
low all of the air to escape from
each fork leg.
Compression damping setting:
Minimum (soft):
20 click(s) in direction (b)*
Standard:
YZ85(W)/YZ85W1: 10 click(s) in
direction (b)*
YZ85LW(W): 9 click(s) in direction
(b)*
Maximum (hard):
1 click(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
1. Bleed screw
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Page 32 of 82
INSTRUMENT AND CONTROL FUNCTIONS
3-9
3
WARNING
EWA10200
Always bleed both fork legs, other-
wise poor handling and loss of sta-bility may result.
3. Install the bleed screws.
EAU41330
Adjusting the shock absorber
assembly This shock absorber assembly is
equipped with a spring preload adjust-
ing nut, a rebound damping force ad-
justing screw and a compression
damping force adjusting screw.CAUTION:
ECA10100
Never attempt to turn an adjusting
mechanism beyond the maximum orminimum settings.
Spring preload
Adjust the spring preload as follows.
1. Loosen the locknut.2. To increase the spring preload and
thereby harden the suspension,
turn the adjusting nut in direction
(a). To decrease the spring pre-
load and thereby soften the sus-
pension, turn the adjusting nut in
direction (b).
NOTE:
A special wrench can be obtained
at a Yamaha dealer to make this
adjustment.
The spring preload setting is deter-
mined by measuring distance A,
shown in the illustration. The long-
er distance A is, the lower the
spring preload; the shorter dis-
tance A is, the higher the spring
preload. With each complete turn
of the adjusting nut, distance A ischanged by 1.5 mm (0.06 in).
1. Locknut
2. Spring preload adjusting nut
U5PA85E0.book Page 9 Thursday, April 13, 2006 3:06 PM
Page 33 of 82
INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
3. Tighten the locknut to the specified
torque.
CAUTION:
ECA10120
Always tighten the locknut against
the adjusting nut, and then tightenthe locknut to the specified torque.
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).
Compression damping force
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).
1. Distance ASpring preload:
Minimum (soft):
Distance A = 218.5 mm (8.60 in)
Standard: YZ85(W)/YZ85W1
Distance A = 215.0 mm (8.46 in)
For Europe only: Distance A =
212.0 mm (8.35 in)
Standard: YZ85LW(W)
Distance A = 207.0 mm (8.15 in)
For Europe only: Distance A =
212.0 mm (8.35 in)
Maximum (hard):
Distance A = 202.5 mm (7.97 in)
Tightening torque:
Locknut:
35 Nm (3.5 m·kgf, 25 ft·lbf)
1. Rebound damping force adjusting screw
Rebound damping setting:
Minimum (soft):
20 click(s) in direction (b)*
Standard: YZ85(W)/YZ85W1
6 click(s) in direction (b)*
For Europe only: 12 click(s) in di-
rection (b)*
Standard: YZ85LW(W)
7 click(s) in direction (b)*
For Europe only: 12 click(s) in di-
rection (b)*
Maximum (hard):
1 click(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
U5PA85E0.book Page 10 Thursday, April 13, 2006 3:06 PM
Page 34 of 82
INSTRUMENT AND CONTROL FUNCTIONS
3-11
3
NOTE:Although the total number of clicks of a
damping force adjusting mechanism
may not exactly match the above spec-ifications due to small differences in
production, the actual number of clicks
always represents the entire adjusting
range. To obtain a precise adjustment,
it would be advisable to check the num-
ber of clicks of each damping force ad-
justing mechanism and to modify the
specifications as necessary.
WARNING
EWA10220
This shock absorber contains highly
pressurized nitrogen gas. For prop-
er handling, read and understand
the following information before
handling the shock absorber. The
manufacturer cannot be held re-
sponsible for property damage or
personal injury that may result from
improper handling.
Do not tamper with or attempt to
open the gas cylinder.
Do not subject the shock ab-
sorber to an open flame or other
high heat sources, otherwise it
may explode due to excessive
gas pressure.
Do not deform or damage the
gas cylinder in any way, as this
will result in poor damping per-
formance.
Always have a Yamaha dealerservice the shock absorber.
1. Compression damping force adjusting screwCompression damping setting:
Minimum (soft):
20 click(s) in direction (b)*
Standard: YZ85(W)/YZ85W1
9 click(s) in direction (b)*
For Europe only: 12 click(s) in di-
rection (b)*
Standard: YZ85LW(W)
7 click(s) in direction (b)*
For Europe only: 12 click(s) in di-
rection (b)*
Maximum (hard):
1 click(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
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Page 35 of 82
INSTRUMENT AND CONTROL FUNCTIONS
3-12
3
EAU41381
Removable sidestand This motorcycle is equipped with a re-
movable sidestand.NOTE:Make sure that the sidestand is proper-
ly secured when the motorcycle is be-ing supported or is being transported.
WARNING
EWA14601
Never apply force on the motor-
cycle while it is on the side-
stand.
Always remove the sidestandbefore starting out.
1. Sidestand
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Page 36 of 82
PRE-OPERATION CHECKS
4-1
4
EAU15591
The condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.NOTE:Pre-operation checks should be made each time the vehicle is used. Such an inspection can be accomplished in a very shorttime; and the added safety it assures is more than worth the time involved.
WARNING
EWA11150
If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operatingthe vehicle.U5PA85E0.book Page 1 Thursday, April 13, 2006 3:06 PM
Page 37 of 82
PRE-OPERATION CHECKS
4-2
4
EAU15605
Pre-operation check list
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Always use a fresh mixture of gasoline and oil.
Check fuel line for leakage.3-3
Transmission oilCheck oil level in transmission case.
If necessary, add recommended oil to specified level.6-9
CoolantCheck coolant level.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage.6-10
Front brakeCheck 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 recommended brake fluid to specified level.
Check hydraulic system for leakage.6-18, 6-19
Rear brakeCheck 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 recommended brake fluid to specified level.
Check hydraulic system for leakage.6-18, 6-19
ClutchCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-17
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-14, 6-22
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Page 38 of 82
PRE-OPERATION CHECKS
4-3
4
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.6-20, 6-21
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.
Check for loose spokes and tighten if necessary.6-15, 6-17
Shift pedalMake sure that operation is smooth.
Correct if necessary.6-23
Brake pedalMake sure that operation is smooth.
Lubricate pedal pivoting point if necessary.6-23
SteeringCheck that the handlebar can be turned smoothly and has no excessive play. 6-25
Front fork and rear shock ab-
sorber assemblyCheck that they operate smoothly and there is no oil leakage. 3-7, 3-8, 3-9, 6-24
Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.—
Moving parts and cablesCheck that the control cables move smoothly.
Check that the control cables are not caught when the handlebars are turned or
when the front forks travel up and down.
Lubricate moving parts and cables if necessary.6-22, 6-23, 6-24, 6-24
Exhaust systemCheck that the exhaust pipe is tightly mounted and has no cracks.
Check for leakage.—
Ignition systemCheck that all leads and cables are properly connected. 6-8 ITEM CHECKS PAGE
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Page 39 of 82
OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU41400
WARNING
EWA14610
This model is designed for off-
road use only. Become thor-
oughly familiar with all operat-
ing controls and their functions
before riding. Consult a Yamaha
dealer regarding any control or
function that you do not thor-
oughly understand.
Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
Before starting out, make sure
that the sidestand is removed. If
the sidestand is not removed, it
will contact the ground, which
could distract the operator or af-
fect the balance of the motor-
cycle, resulting in a possibleloss of control.
EAU41300
Starting and warming up a
cold engine 1. Turn the fuel cock lever to “ON”.
2. Shift the transmission into the neu-
tral position.
3. Turn the starter (choke) on and
completely close the throttle. (See
page 3-6.)
4. Start the engine by pushing the
kickstarter lever down.CAUTION:
ECA11130
For maximum engine life, always
warm the engine up before starting
off. Never accelerate hard when theengine is cold!
5. When the engine is warm, turn the
starter (choke) off.NOTE:The engine is warm when it responds
normally to the throttle with the starter(choke) turned off.
EAU16660
Starting a warm engine Follow the same procedure as for start-
ing a cold engine with the exception
that the starter (choke) is not required
when the engine is warm. Instead, start
the engine with the throttle slightly
open.NOTE:If the engine does not start after several
kicks, try again with the throttle 1/4 to1/2 open.
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Page 40 of 82
OPERATION AND IMPORTANT RIDING POINTS
5-2
5
EAU16671
Shifting Shifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the il-
lustration.NOTE:To shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of itstravel, and then slightly raise it.
CAUTION:
ECA10260
Even with the transmission in
the neutral position, do not
coast for long periods of time
with the engine off, and do not
tow the motorcycle for long dis-
tances. The transmission is
properly lubricated only when
the engine is running. Inade-
quate lubrication may damage
the transmission.
Always use the clutch while
changing gears to avoid damag-
ing the engine, transmission,
and drive train, which are not
designed to withstand theshock of forced shifting.
EAU16690
To start out and accelerate
1. Pull the clutch lever to disengage
the clutch.
2. Shift the transmission into first
gear.
3. Open the throttle gradually and si-
multaneously release the clutch le-
ver slowly.4. Once the motorcycle has reached
a speed high enough to change
gears, close the throttle, and at the
same time, quickly pull the clutch
lever in.
5. Shift the transmission into second
gear. (Make sure not to shift the
transmission into the neutral posi-
tion.)
6. Open the throttle halfway and
gradually release the clutch lever.
7. Follow the same procedure when
shifting to the next gear.
EAU16710
To decelerate
1. Close the throttle and apply both
the front and the rear brakes to
slow the motorcycle.
2. Downshift through the gears and
shift the transmission into the neu-
tral position when the motorcycle
is almost completely stopped.
1. Shift pedal
2. Neutral positionU5PA85E0.book Page 2 Thursday, April 13, 2006 3:06 PM