tire pressure YAMAHA YZ85 2008 Owners Manual

SAFETY INFORMATION
1-6
1
10
11 6
7WARNING
BEFORE YOU OPERATE THIS VEHICLE, READ
THE OWNER’S MANUAL AND ALL LABELS.
NEVER CARRY A PASSENGER. You increase
your risk of losing control if you carry a passenger.NEVER OPERATE THIS VEHICLE ON PUBLIC
ROADS. You can collide with another vehicle if
you operate this vehicle on a public road.ALWAYS WEAR AN APPROVED MOTORCYCLE
HELMET, eye protection, and protective clothing.
EXPERIENCED RIDER ONLY.
5PA-2118K-00
AVERTISSEMENT
LIRE LE MANUEL DU PROPRIETAIRE ANSI QUE TOUTES LES
ETIQUETTES AVANT D’UTILISER CE VEHICULE.
NE JAMAIS TRANSPORTER DE PASSAGER. La conduite avecpassager augmente les risques de perte de contrôle.
NE JAMAIS ROULER SUR DES CHEMINS PUBLICS.Vous pourriez entrer en collision avec un aulre véhicule
.
TOUJOURS PORTER UN CASQUE DE MOTOCYCLISTEAPPROUVE, des lunettes et des vêlements de protection.EXCLUSIVEMENT POUR L’USAGE D’UN CONDUCTEUR
EXPERIMENTE.
5PA-2118K-10
Cold tire normal pressure should be set as
follows.FRONT : 100kPa, {1.00kgf/cm
2}, 15psi
REAR : 100kPa, {1.00kgf/cm2}, 15psi
3RV-21668-A0
TIRE INFOMATION
La pression des pneus à froid doit normalement
être réglée comme suit.
AVANT : 100kPa, {1.00kgf/cm
2}, 15psi
ARRIERE
: 100kPa, {1.00kgf/cm
2}, 15psi
3RV-21668-B0
INFORMATION SUR LES PNEUS
U5PA86E0.book Page 6 Monday, April 9, 2007 3:16 PM

SAFETY INFORMATION
1-7
1 For Europe
9
12 10 3
8
Before you operate this vehicle, read the owner’s manual.
Prima di usare il veicolo, leggete il manuale di istruzioni.
Lire le manuel du propriétaire avant d’utiliser ce véhicule.
Lesen Sie die Bedienungsanleitung bevor Sie dieses Fahrzeug fahren.
Antes de conducir este vehículo, lea el Manual del Propietario.
5PA-21568-00
TIRE INFORMATION
Cold tire normal pressure should be set as
follows.
FRONT : 100kPa, {
1.00kgf/cm
2}
, 15psi
REAR : 100kPa, {1.00kgf/cm2}, 15psi
3RV-21668-A0
YAMAHA MOTOR CO., LTD.
SHIZUOKA JAPANYAMAHA
4GB-2155A-00
U5PA86E0.book Page 7 Monday, April 9, 2007 3:16 PM

SAFETY INFORMATION
1-8
1For Oceania and South Africa
10 3
8
Before you operate this vehicle, read the owner’s manual.
Prima di usare il veicolo, leggete il manuale di istruzioni.
Lire le manuel du propriétaire avant d’utiliser ce véhicule.
Lesen Sie die Bedienungsanleitung bevor Sie dieses Fahrzeug fahren.
Antes de conducir este vehículo, lea el Manual del Propietario.
5PA-21568-00
TIRE INFORMATION
Cold tire normal pressure should be set as
follows.
FRONT : 100kPa, {
1.00kgf/cm
2}
, 15psi
REAR : 100kPa, {1.00kgf/cm2}, 15psi
3RV-21668-A0
U5PA86E0.book Page 8 Monday, April 9, 2007 3:16 PM

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(X): 10 click(s) in direction
(b)*
YZ85LW(X): 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
U5PA86E0.book Page 8 Monday, April 9, 2007 3:16 PM

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(X)
9 click(s) in direction (b)*
For Europe only: 12 click(s) in di-
rection (b)*
Standard:YZ85LW(X)
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)
U5PA86E0.book Page 11 Monday, April 9, 2007 3:16 PM

PRE-OPERATION CHECKS
4-1
4
EAU15593
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.U5PA86E0.book Page 1 Monday, April 9, 2007 3:16 PM

PRE-OPERATION CHECKS
4-3
4
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.6-21, 6-22
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.6-24
Brake pedalMake sure that operation is smooth.
Lubricate pedal pivoting point if necessary.6-24
SteeringCheck that the handlebar can be turned smoothly and has no excessive play. 6-26
Front fork and rear shock ab-
sorber assemblyCheck that they operate smoothly and there is no oil leakage. 3-7, 3-8, 3-9, 6-25
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.6-23, 6-24, 6-25, 6-25
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
U5PA86E0.book Page 3 Monday, April 9, 2007 3:16 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-6
6
EAU42011
NOTE:

Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid levels.
√ √√
√ 24*Drive chain roller and
support guideReplace if necessary. Check for wear or damage.
√
25*Rear suspensionCheck operation and tighten if necessary.
Lubricate with
lithium-soap-based grease
.
NO. ITEM ROUTINEAfter
break-inEvery
raceEvery
third raceEvery
fifth raceAs
required
√
√
√
√ √ √
√ √√ √
√
√
√
√
√ 26*Steering headCheck operation, free play, and tighten if necessary.
Clean and lubricate with lithium-soap-based grease.
Replace bearings.
27*Tires and wheelsCheck tire air pressure, wheel runout, spokes for
looseness, and tires for wear.
Tighten sprocket bolts if necessary.
Check wheel bearings for looseness.
Lubricate wheel bearings with lithium-soap-based
grease.
Replace wheel bearings.
28*Moving parts and ca-
blesLubricate.
29*Throttle grip housing
and cableCheck operation and free play.
Adjust the throttle cable free play if necessary.
Lubricate the throttle grip housing and cable.
U5PA86E0.book Page 6 Monday, April 9, 2007 3:16 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
6
EAU21370
Adjusting the throttle cable
free play The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, adjust it as follows.NOTE:The engine idling speed must be cor-
rectly adjusted before checking and ad-justing the throttle cable free play.
1. Loosen the locknut.2. To increase the throttle cable free
play, turn the adjusting nut in direc-
tion (a). To decrease the throttle
cable free play, turn the adjusting
nut in direction (b).
3. Tighten the locknut.
EAU41820
Tires To maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points
regarding the specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA14380


The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).


The tire air pressure must be ad-
justed in accordance with the
weight of the rider, the riding
speed, and the riding condi-tions.
1. Throttle cable free play
1. Locknut
2. Throttle cable free play adjusting nut
Standard tire air pressure:
Front:
100 kPa (15 psi) (1.00 kgf/cm²)
Rear:
100 kPa (15 psi) (1.00 kgf/cm²)
U5PA86E0.book Page 15 Monday, April 9, 2007 3:16 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6Tire inspection
The tires must be checked before each
ride.
CAUTION:
ECA15580


Be sure the bead stoppers are
tightened. Loose bead stoppers
will cause the tire to slip off the
rim if tire pressure is too low.


Be sure the valve stem is posi-
tioned straight. A tilted valve
stem indicates that the tire has
slipped from its original posi-
tion on the rim. Rotate the tire
so that the valve stem is posi-tioned straight.If the center tread depth reaches the
specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.
Tire information
This motorcycle is equipped with spoke
wheels and tube tires.
WARNING
EWA10460


The front and rear tires should
be of the same make and de-
sign, otherwise the handling
characteristics of the vehicle
cannot be guaranteed.


After extensive tests, only the
tires listed below have been ap-
proved for this model byYamaha Motor Co., Ltd.
WARNING
EWA14390


Have a Yamaha dealer replace
excessively worn tires. Operat-
ing the motorcycle with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
1. Tire sidewall
2. Tire tread depth
12
Minimum tire tread depth (front and
rear):
4.0 mm (0.16 in)
Front tire:
Size:
YZ85 70/100-17 40M
YZ85LW 70/100-19 42M
YZ85LWX 70/100-19 42M
YZ85X 70/100-17 40M
Manufacturer/model:
YZ85 DUNLOP/D739FA (ZAF)
YZ85 DUNLOP/D756F
(AUT)(BEL)(CHE)(DEU)(DNK)(ES
P)(FIN)(FRA)(GBR)(GRC)(IRL)(N
LD)(NOR)(PRT)(SWE)
YZ85LW DUNLOP/D756F
YZ85LWX DUNLOP/D756F
YZ85X DUNLOP/D756F
Rear tire:
Size:
YZ85 90/100-14 49M
YZ85LW 90/100-16 52M
YZ85LWX 90/100-16 52M
YZ85X 90/100-14 49M
Manufacturer/model:
DUNLOP/D756
U5PA86E0.book Page 16 Monday, April 9, 2007 3:16 PM