Yamaha YZ85F, YZ85LWF User Manual

Read this manual carefully before operating this vehicle.
Il convient de lire attentivement ce manuel avant la pre-

mière utilisation du véhicule.

Bitte lesen Sie diese Bedienungsanleitung sorgfältig

durch, bevor Sie das Fahrzeug in Betrieb nehmen.

OWNER’S MANUAL

MANUEL DU PROPRIÉTAIRE

BEDIENUNGSANLEITUNG

YZ85/YZ85F

YZ85LW/YZ85LWF

1SN-28199-83

Original instructions

Notice originale

Originalbetriebsanleitung

PRINTED ON RECYCLED PAPER
IMPRIMÉ SUR PAPIER RECYCLÉ
AUF RECYCLINGPAPIER GEDRUCKT

PRINTED IN JAPAN

2014.09-0.4×1 CR
(E,F,G)

Read this manual carefully before operating this vehicle.

OWNER’S MANUAL

YZ85/YZ85F

YZ85LW/YZ85LWF

1SN-28199-83-E0

EAU46091

Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.

INTRODUCTION

WARNING

WARNING

EAU41545

Congratulations on your purchase of the Yamaha YZ85/YZ85F/YZ85LW/YZ85LWF. This model is the result of Yamaha’s
vast experience in the production of fine sporting, touring, and pacesetting racing machines. It represents the high degree
of craftsmanship and reliability that have made Yamaha a leader in these fields.
This manual will give you an understanding of the operation, inspection, and basic maintenance of this motorcycle. If you
have any questions concerning the operation or maintenance of your motorcycle, please consult a Yamaha dealer.
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most cur­rent product information available at the time of printing, there may be minor discrepancies between your motorcycle and
this manual. If there is any question concerning this manual, please consult a Yamaha dealer.

Please read this manual carefully and completely before operating this motorcycle.

This motorcycle is designed and manufactured for off-road use only. It is illegal to operate this motorcycle on any
public street, road or highway. Such use is prohibited by law. This motorcycle complies with almost all state off­highway noise level and spark arrester laws and regulations. Please check your local riding laws and regulations
before operating this motorcycle.

AN IMPORTANT SAFETY MESSAGE:

 Read this manual completely before operating your motorcycle. Make sure you understand all instructions.
 Pay close attention to the warning and notice labels on the motorcycle.
 Never operate a motorcycle without proper training or instruction.

EWA10032

EWA14352

INTRODUCTION

AN IMPORTANT NOTE TO PARENTS:

This motorcycle is not a toy. Before you let your child ride this motorcycle, you should understand the instructions and warn­ings in this Owner’s Manual. Then be sure your child understands and will follow them. Children differ in skills, physical abil­ities, and judgment. Some children may not be able to operate a motorcycle safely. Parents should supervise their child’s
use of the motorcycle at all times. Parents should permit continued use only if they determine that the child has the ability
to operate the motorcycle safely.

Motorcycles are single track vehicles. Their safe use and operation are dependent upon the use of proper riding
techniques as well as the expertise of the operator. Every operator should know the following requirements before
riding this motorcycle.

He or she should:

 Obtain thorough instructions from a competent source on all aspects of motorcycle operation.
 Observe the warnings and maintenance requirements in this Owner’s Manual.
 Obtain qualified training in safe and proper riding techniques.
 Obtain professional technical service as indicated in this Owner’s Manual and/or when made necessary by mechanical

conditions.

IMPORTANT MANUAL INFORMATION

WARNING

NOTICE

TIP

Particularly important information is distinguished in this manual by the following notations:

This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.

A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.

A NOTICE indicates special precautions that must be taken to avoid damage to the
vehicle or other property.

A TIP provides key information to make procedures easier or clearer.

*Product and specifications are subject to change without notice.

EAU10134

IMPORTANT MANUAL INFORMATION

YZ85/YZ85F/YZ85LW/YZ85LWF

OWNER’S MANUAL

©2014 by Yamaha Motor Co., Ltd.

1st edition, September 2014

All rights reserved.

Any reprinting or unauthorized use

without the written permission of

Yamaha Motor Co., Ltd.

is expressly prohibited.

Printed in Japan.

EAU10201

TABLE OF CONTENTS

LOCATION OF IMPORTANT

LABELS..............................................1-1

SAFETY INFORMATION ...................2-1

DESCRIPTION...................................3-1

Left view ..........................................3-1

Right view........................................3-2

Controls and instruments................3-3

INSTRUMENT AND CONTROL

FUNCTIONS.......................................4-1

Handlebar switch ............................4-1

Clutch lever .....................................4-1

Shift pedal .......................................4-2

Brake lever ......................................4-2

Brake pedal .....................................4-3

Fuel tank cap...................................4-3

Fuel..................................................4-3

Fuel tank breather hose...................4-5

Fuel cock.........................................4-6

Starter (choke) knob........................4-6

Kickstarter .......................................4-7

Seat .................................................4-7

Adjusting the front fork....................4-8

Front fork bleeding ..........................4-9

Adjusting the shock absorber

assembly....................................4-10

Removable sidestand....................4-12

FOR YOUR SAFETY –

PRE-OPERATION CHECKS............. 5-1

OPERATION AND IMPORTANT

RIDING POINTS ................................ 6-1

Starting and warming up a cold

engine.......................................... 6-1

Starting a warm engine................... 6-1

Shifting............................................ 6-2

Engine break-in...............................6-3

Parking............................................6-4

PERIODIC MAINTENANCE AND

ADJUSTMENT .................................. 7-1

Periodic maintenance and

lubrication chart .......................... 7-2

Checking the spark plug.................7-8

Transmission oil.............................. 7-9

Coolant .........................................7-10

Cleaning the air filter element....... 7-12

Adjusting the carburetor ............... 7-14

Adjusting the engine idling

speed......................................... 7-14

Adjusting the throttle grip free

play............................................ 7-15

Tires ..............................................7-15

Spoke wheels ...............................7-17

Adjusting the clutch lever free

play............................................ 7-18

Checking the brake lever free

play............................................ 7-19

Checking the shift pedal ...............7-19

Checking the front and rear brake

pads...........................................7-20

Checking the brake fluid level .......7-20

Changing the brake fluid...............7-22

Drive chain slack...........................7-22

Cleaning and lubricating the drive

chain ..........................................7-23

Checking and lubricating the

cables ........................................7-24

Checking and lubricating the

throttle grip and cable ...............7-24

Checking and lubricating the

brake and clutch levers .............7-24

Checking and lubricating the

brake pedal................................7-25

Lubricating the rear suspension....7-25

Lubricating the swingarm pivots...7-26

Checking the front fork .................7-26

Checking the steering ...................7-27

Checking the wheel bearings........7-27

Supporting the motorcycle ...........7-28

Front wheel ...................................7-28

Rear wheel ....................................7-29

Troubleshooting ............................7-31

Troubleshooting charts .................7-32

MOTORCYCLE CARE AND

STORAGE ..........................................8-1

Matte color caution.........................8-1

Care.................................................8-1

TABLE OF CONTENTS

Storage........................................... 8-3

SPECIFICATIONS............................. 9-1

CONSUMER INFORMATION......... 10-1

Identification numbers.................. 10-1

INDEX .............................................. 11-1

LOCATION OF IMPORTANT LABELS

1,2,3 4

8910

5 6,7

EAU50482

Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of
your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement
label is available from your Yamaha dealer.

For Canada

1

1-1

LOCATION OF IMPORTANT LABELS

Use premium unleaded
gasoline / oil premix only.

3XJ-2415E-A1

Utiliser de préférence un mélange
huile/super sans plomb.

3XJ-2415E-B1

4SR-2416E-00

3JK-82377-00

This spark ignition system meets all requirements
of the Canadian Interference Causing Equipment
Regulations.
Ce système d’allumage par étincelle de véhicule
respecte toutes les exigences du Règlement sur le
matériel brouilleur du Canada.

WARNING

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

2

4

6

1

3

5

For Canada

1

1-2

LOCATION OF IMPORTANT LABELS

AVERTISSEMENT

LIRE LE MANUEL DU PROPRIETAIRE AINSI QUE TOUTES LES
ETIQUETTES AVANT D’UTILISER CE VEHICULE.

NE JAMAIS TRANSPORTER DE PASSAGER. La conduite avec
passager augmente les risques de perte de contrôle.

NE JAMAIS ROULER SUR DES CHEMINS PUBLICS.
Vous pourriez entrer en collision avec un autre véhicule

.

TOUJOURS PORTER UN CASQUE DE MOTOCYCLISTE
APPROUVE, des lunettes et des vêtements de protection.

EXCLUSIVEMENT POUR L’USAGE D’UN CONDUCTEUR
EXPERIMENTE.

5PA-2118K-10

Cold tire normal pressure should be set as
follows.

FRONT
REAR

: 100kPa, {1.00kgf/cm2}, 15psi
: 100kPa, {1.00kgf/cm

2

}, 15psi

3RV-21668-A0

TIRE INFORMATION

La pression des pneus à froid doit normalement
être réglée comme suit.

AVANT
ARRIERE

: 100kPa, {1.00kgf/cm2}, 15psi
: 100kPa, {1.00kgf/cm

2

}, 15psi

3RV-21668-B0

INFORMATION SUR LES PNEUS

•

C

M

V

S

S

•

C

A

N

A

D

A

•

N

S

V

A

C

•

T

R

A

N

S

P

O

R

T

506

8

10

7

9

For Canada

1

1-3

LOCATION OF IMPORTANT LABELS

For Europe

1

12

3

1-4

LOCATION OF IMPORTANT LABELS

5PG-2816R-00

100 kPa

1.00 kgf/cm²
15 psi

100 kPa

1.00 kgf/cm²
15 psi

4AA-22259-40

YAMAHA MOTOR CO., LTD.

SHIZUOKA JAPAN

YAMAHA

4GB-2155A-00

21

3

For Europe

1

1-5

LOCATION OF IMPORTANT LABELS

Read the Owner’s manual.

Always use an approved
helmet and protective gear.

Never use on paved roads.

Use from 6 years old.
Operation of this motorcycle
by children under the age of 6
increase the risk of severe
injury or death.

Never carry passengers.

Adult supervision required for
children.

This unit contains high­pressure nitrogen gas.
Mishandling can cause an
explosion. Do not incinerate,
puncture or open.

Turn off the main switch after
riding to avoid draining the
battery.

Familiarize yourself with the following pictograms and read the explanatory text.

1

1-6

**.* kPa
*.** kgf/cm²

*.* psi

**.* kPa
*.** kgf/cm²

*.* psi

Use unleaded gasoline only.

Measure the tire pressure
when the tires are cold.

Adjust the tire pressure.
Improper tire pressure can
cause loss of control.
Loss of control can result in
severe injury or death.

LOCATION OF IMPORTANT LABELS

1

1-7

LOCATION OF IMPORTANT LABELS

For Oceania and South Africa

1

12

1-8

3

LOCATION OF IMPORTANT LABELS

4AA-22259-40

WARNING

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

Cold tire normal pressure should be set as
follows.

FRONT
REAR

: 100kPa, {1.00kgf/cm2}, 15psi
: 100kPa, {1.00kgf/cm

2

}, 15psi

3RV-21668-A0

TIRE INFORMATION

21

3

For Oceania and South Africa

1

1-9

SAFETY INFORMATION

Be a Responsible Owner

2

As the vehicle’s owner, you are re­sponsible for the safe and proper oper­ation of your motorcycle.
Motorcycles are single-track vehicles.
Their safe use and operation are de­pendent upon the use of proper riding
techniques as well as the expertise of
the operator. Every operator should
know the following requirements be­fore riding this motorcycle.
He or she should:

 Obtain thorough instructions from

a competent source on all aspects
of motorcycle operation.

 Observe the warnings and mainte-

nance requirements in this Own­er’s Manual.

 Obtain qualified training in safe

and proper riding techniques.

 Obtain professional technical ser-

vice as indicated in this Owner’s
Manual and/or when made neces­sary by mechanical conditions.

EAU41469

 Never operate a motorcycle with-

out proper training or instruction.
Take a training course. Beginners
should receive training from a cer­tified instructor. Contact an autho­rized motorcycle dealer to find out
about the training courses nearest
you.

Safe Riding

Perform the pre-operation checks
each time you use the vehicle to make
sure it is in safe operating condition.
Failure to inspect or maintain the vehi­cle properly increases the possibility of
an accident or equipment damage.
See page 5-1 for a list of pre-operation
checks.

 This motorcycle is designed for

off-road use only, therefore, it is il­legal to operate it on public
streets, roads, or highways, even
a dirt or gravel one. Off-road use
on public lands may be illegal.
Please check local regulations be­fore riding.

 This motorcycle is designed to

carry the operator only. No pas­sengers.

2-1

 The failure of motorists to detect

and recognize motorcycles in traf­fic is the predominating cause of
automobile/motorcycle accidents.
Many accidents have been
caused by an automobile driver
who did not see the motorcycle.
Making yourself conspicuous ap­pears to be very effective in reduc­ing the chance of this type of
accident.

Therefore:

• Wear a brightly colored jacket.

• Use extra caution when you are
approaching and passing
through intersections, since in­tersections are the most likely
places for motorcycle accidents
to occur.

• Ride where other motorists can
see you. Avoid riding in another
motorist’s blind spot.

• Never maintain a motorcycle
without proper knowledge.
Contact an authorized motorcy­cle dealer to inform you on ba­sic motorcycle maintenance.
Certain maintenance can only
be carried out by certified staff.

SAFETY INFORMATION

 Many accidents involve inexperi-

enced operators.

• Make sure that you are qualified
and that you only lend your mo­torcycle to other qualified oper­ators.

• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.

• We recommend that you prac­tice riding your motorcycle until
you have become thoroughly
familiar with the motorcycle and
all of its controls.

 Many accidents have been

caused by error of the motorcycle
operator. A typical error made by
the operator is veering wide on a
turn due to excessive speed or un­dercornering (insufficient lean an­gle for the speed). Never travel
faster than warranted by condi­tions.

 Ride cautiously in unfamiliar ar-

eas. You may encounter hidden
obstacles that could cause an ac­cident.

 The posture of the operator is im-

portant for proper control. The op­erator should keep both hands on
the handlebar and both feet on the
operator footrests during opera­tion to maintain control of the mo­torcycle.

 Never ride under the influence of

alcohol or other drugs.

 Be sure the transmission is in neu-

tral before starting the engine.

Protective Apparel

The majority of fatalities from motorcy­cle accidents are the result of head in­juries. The use of a safety helmet is the
single most critical factor in the pre­vention or reduction of head injuries.

 Always wear an approved helmet.
 Wear a face shield or goggles.

Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.

 The use of a jacket, heavy boots,

trousers, gloves, etc., is effective
in preventing or reducing abra­sions or lacerations.

 Never wear loose-fitting clothes,

otherwise they could catch on the
control levers, footrests, or wheels
and cause injury or an accident.

 Always wear protective clothing

that covers your legs, ankles, and
feet. The engine or exhaust sys­tem become very hot during or af­ter operation and can cause
burns.

Avoid Carbon Monoxide Poisoning

All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause head­aches, dizziness, drowsiness, nausea,
confusion, and eventually death.
Carbon Monoxide is a colorless, odor­less, tasteless gas which may be pres­ent even if you do not see or smell any
engine exhaust. Deadly levels of car­bon monoxide can collect rapidly and
you can quickly be overcome and un­able to save yourself. Also, deadly lev­els of carbon monoxide can linger for
hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poi-

2

2-2

SAFETY INFORMATION

soning, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT­MENT.

2

 Do not run engine indoors. Even if

you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap­idly reach dangerous levels.

 Do not run engine in poorly venti-

lated or partially enclosed areas
such as barns, garages, or car­ports.

 Do not run engine outdoors where

engine exhaust can be drawn into
a building through openings such
as windows and doors.

Genuine Yamaha Accessories

Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail­able 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 ac­cessories 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 en­dorse nor recommend the use of ac­cessories not sold by Yamaha or
modifications not specifically recom­mended by Yamaha, even if sold and
installed by a Yamaha dealer.

Aftermarket Parts, Accessories, and
Modifications

While you may find aftermarket prod­ucts similar in design and quality to
genuine Yamaha accessories, recog­nize that some aftermarket accesso­ries or modifications are not suitable
because of potential safety hazards to
you or others. Installing aftermarket
products or having other modifications
performed to your vehicle that change
any of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or
death. You are responsible for injuries
related to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Load­ing” when mounting accessories.

2-3

 Never install accessories that

would impair the performance of
your motorcycle. Carefully inspect
the accessory before using it to
make sure that it does not in any
way reduce ground clearance or
cornering clearance, limit suspen­sion travel, steering travel or con­trol operation.

• Accessories fitted to the han­dlebar or the front fork area can
create instability due to improp­er weight distribution. If acces­sories are added to the
handlebar or front fork area,
they must be as lightweight as
possible and should be kept to
a minimum.

• Bulky or large accessories may
seriously affect the stability of
the motorcycle. Wind may at­tempt to lift the motorcycle, or
the motorcycle may become
unstable in cross winds.

• Certain accessories can dis­place the operator from his or
her normal riding position. This
improper position limits the
freedom of movement of the

SAFETY INFORMATION

operator and may limit control
ability, therefore, such accesso­ries are not recommended.

 Use caution when adding electri-

cal accessories. If electrical ac­cessories exceed the capacity of
the motorcycle’s electrical sys­tem, an electric failure could re­sult, which could cause a
dangerous loss of lights or engine
power.

Aftermarket Tires and Rims

The tires and rims that came with your
motorcycle were designed to match
the performance capabilities and to
provide the best combination of han­dling, braking, and comfort. Other
tires, rims, sizes, and combinations
may not be appropriate. Refer to page
7-15 for tire specifications and more in­formation on replacing your tires.

Transporting the Motorcycle

Be sure to observe following instruc­tions before transporting the motorcy­cle in another vehicle.

 Remove all loose items from the

motorcycle.

 Check that the fuel cock (if

equipped) is in the “OFF” position
and that there are no fuel leaks.

 Point the front wheel straight

ahead on the trailer or in the truck
bed, and choke it in a rail to pre­vent movement.

 Shift the transmission in gear (for

models with a manual transmis­sion).

 Secure the motorcycle with tie-

downs or suitable straps that are
attached to solid parts of the mo­torcycle, such as the frame or up­per front fork triple clamp (and not,
for example, to rubber-mounted
handlebars or turn signals, or
parts that could break). Choose
the location for the straps carefully
so the straps will not rub against
painted surfaces during transport.

 The suspension should be com-

pressed somewhat by the tie­downs, if possible, so that the mo­torcycle will not bounce exces­sively during transport.

2-4

2

DESCRIPTION

Left view

EAU10411

12

3

1. Radiator cap (page 7-10)

2. Fuel tank cap (page 4-3)

3. Fuel cock (page 4-6)

4. Shock absorber assembly spring preload adjusting nut (page 4-10)

5. Air filter element (page 7-12)

6. Seat (page 4-7)

7. Shift pedal (page 4-2)

8. Throttle stop screw (page 7-14)

345 6

789

9. Starter (choke) knob (page 4-6)

3-1

Right view

1

9

81011 67 5

2 3,4

DESCRIPTION

EAU10421

3

1. Shock absorber assembly compression damping force adjusting
screw (page 4-10)

2. Kickstarter (page 4-7)

3. Front fork rebound damping force adjusting screw (page 4-8)

4. Bleed screw (page 4-9)

5. Front fork compression damping force adjusting screw (page 4-8)

6. Spark plug cap (page 7-8)

7. Transmission oil filler cap (page 7-9)

8. Coolant drain bolt (page 7-11)

9. Brake pedal (page 4-3)

10.Transmission oil drain bolt (page 7-9)

11.Shock absorber assembly rebound damping force adjusting screw
(page 4-10)

3-2

DESCRIPTION

Controls and instruments

EAU10431

3

1. Clutch lever (page 4-1)

2. Engine stop switch (page 4-1)

3. Brake lever (page 4-2)

4. Throttle grip (page 7-15)

1

32

4

3-3

INSTRUMENT AND CONTROL FUNCTIONS

4

21 3

(b)

(a)

EAU40661

Handlebar switch

1. Engine stop switch “ENGINE STOP”

EAU53962

Engine stop switch “ENGINE STOP”

Hold this switch pushed until the en­gine stops.

EAU64022

Clutch lever

The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the han­dlebar grip. To engage the clutch, re­lease the lever. The lever should be
pulled rapidly and released slowly for
smooth clutch operation.
The clutch lever is equipped with a
clutch lever position adjusting bolt. Ad­just the distance between the clutch le­ver and the handlebar grip as follows.

1. Loosen the locknut.

2. While holding the clutch lever
pulled slightly towards the handle­bar grip, turn the adjusting bolt in
direction (a) to increase the dis­tance, and in direction (b) to de­crease it.

4

1. Clutch lever

2. Locknut

3. Clutch lever position adjusting bolt

4. Distance between clutch lever and handle­bar grip

3. Tighten the locknut.

4-1

INSTRUMENT AND CONTROL FUNCTIONS

1

4

3

(a)

(b)

2

5

Shift pedal

4

1. Shift pedal

The shift pedal is located on the left
side of the motorcycle and is used in
combination with the clutch lever when
shifting the gears of the 6-speed con­stant-mesh transmission equipped on
this motorcycle.

EAU12872

EAU41267

Brake lever

The brake lever is located on the right
side of the handlebar. To apply the
front brake, pull the lever toward the
throttle grip.
The brake lever is equipped with a
brake lever position adjusting bolt. Ad­just the distance between the brake le­ver and the throttle grip as follows.

1. Slide the rubber cover toward the
end of the brake lever.

2. Loosen the locknut.

3. While holding the lever pushed
away from the throttle grip, turn
the adjusting bolt in direction (a) to
increase the distance, and in di­rection (b) to decrease it.

1. Rubber cover

2. Brake lever

3. Locknut

4. Brake lever position adjusting bolt

5. Distance between brake lever and throttle
grip

4. Tighten the locknut.

5. Slide the rubber cover to its origi­nal position.

4-2

INSTRUMENT AND CONTROL FUNCTIONS

WARNING

NOTICE

EAU12944

Brake pedal

1. Brake pedal 1. Fuel tank cap

The brake pedal is located on the right
side of the motorcycle. To apply the
rear brake, press down on the brake
pedal.

Fuel tank cap

To remove the fuel tank cap, turn it
counterclockwise, and then pull it off.
To install the fuel tank cap, insert it into
the tank opening, and then turn it
clockwise.

Make sure that the fuel tank cap is
properly closed after filling fuel.
Leaking fuel is a fire hazard.

EAU13183

EWA11092

EAU41835

Fuel

This motorcycle has been designed to
use a premixed fuel of gasoline and 2­stroke engine oil. Always mix the gaso­line and oil in a clean container before
filling the fuel tank.

ECA15602

4

Always use fresh gasoline, and fill
the fuel tank with a fresh mix just be-
fore riding. Do not use premixed fuel
that is more than a few hours old.

Mixing gasoline and 2-stroke engine
oil

Pour 2-stroke engine oil into a clean
container, and then add gasoline. To
mix the fuel thoroughly, shake the con­tainer from side to side.

4-3

INSTRUMENT AND CONTROL FUNCTIONS

NOTICE

NOTICE

WARNING

4

1. 2-stroke engine oil

2. Gasoline

3. Container

Recommended fuel:

Premium unleaded gasoline only

Recommended 2-stroke engine oil:

See page 9-1.

Fuel tank capacity:

5.0 L (1.32 US gal, 1.10 Imp.gal)

Mixing ratios (gasoline to oil):

Break-in period: 15:1
After break-in: 30:1

Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the piston rings as well as to
the exhaust system.

ECA15591

Your Yamaha engine has been de­signed to use premium unleaded gas­oline with a pump octane number
[(R+M)/2] of 91 or higher, or a research
octane number of 95 or higher. If
knocking (or pinging) occurs, use a
gasoline of a different brand.
If the recommended 2-stroke engine
oil is not available, use an equivalent
oil.

ECA15552

Never mix two brands of 2-stroke
engine oil in the same batch. Always
use the same type of oil to ensure
maximum engine performance.
Should it be necessary to use a dif­ferent oil brand, be sure to drain the
fuel tank and the carburetor float
chamber of the old premixed fuel
prior to filling with the new type.

Filling the fuel tank

1. Maximum fuel level

2. Fuel tank filler tube

Make sure there is sufficient gasoline in
the tank.

EWA10882

Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.

1. Before refueling, turn off the en­gine and be sure that no one is sit­ting on the vehicle. Never refuel
while smoking, or while in the vi­cinity of sparks, open flames, or

4-4

INSTRUMENT AND CONTROL FUNCTIONS

WARNING

TIP

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 immedi­ately. NOTICE: Immediately

wipe off spilled fuel with a clean,
dry, soft cloth, since fuel may
deteriorate painted surfaces or

plastic parts.

[ECA10072]

4. Be sure to securely close the fuel
tank cap.

EWA15152

Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gasoline
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.

EAU41362

Fuel tank breather hose

4

1. Fuel tank breather hose

2. One-way valve

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 necessary.

 Make sure that the end of the fuel

tank breather hose is not blocked,
and clean it if necessary.

If the fuel tank breather hose falls out,
reinstall it on the fuel tank cap with the
arrow mark on the one-way valve
pointed downward as shown.

4-5

INSTRUMENT AND CONTROL FUNCTIONS

Fuel cock

The fuel cock supplies fuel from the
tank to the carburetor while filtering it
also.
The fuel cock has two positions:

OFF

4

1. Arrow mark positioned over “OFF”

With the lever in this position, fuel will
not flow. Always return the lever to this
position when the engine is not run­ning.

EAU41281

ON

1. Arrow mark positioned over “ON”

With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.

EAU13641

Starter (choke) knob

1. Starter (choke) knob

Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the knob in direction (a) to turn
on the starter (choke).
Move the knob in direction (b) to turn
off the starter (choke).

4-6

INSTRUMENT AND CONTROL FUNCTIONS

TIP

1

1

2

3

2

EAU13651

Kickstarter

1. Kickstarter lever

To start the engine, fold out the kick­starter lever, move it down lightly with
your foot until the gears engage, and
then push it down smoothly but force­fully. This model is equipped with a pri­mary kickstarter, allowing the engine to
be started in any gear if the clutch is
disengaged. However, shifting the
transmission into the neutral position
before starting is recommended.

EAU46283

Seat

To remove the seat

Remove the bolts, and then slide the
seat to the rear and pull upward.

1. Bolt

To install the seat

1. Fit the slot in the seat onto the pro­jection on the fuel tank, and insert
the projection on the seat into the
seat holder as shown.

4

1. Slot

2. Projection

3. Seat holder

2. Place the seat in the original posi­tion, and then tighten the bolts.

Make sure that the seat is properly se­cured before riding.

4-7

INSTRUMENT AND CONTROL FUNCTIONS

WARNING

NOTICE

Adjusting the front fork

Always adjust both fork legs equally,
otherwise poor handling and loss of
stability may result.

This front fork is equipped with re-

4

bound damping force adjusting screws
and compression damping force ad­justing screws.

To avoid damaging the mechanism,
do not attempt to turn beyond the

maximum or minimum settings.

Rebound damping force

To increase the rebound damping
force and thereby harden the rebound
damping, turn the adjusting screw on
each fork leg in direction (a). To de­crease the rebound damping force and
thereby soften the rebound damping,
turn the adjusting screw on each fork
leg in direction (b).

EAU41473

EWA10181

ECA10102

1. Rebound damping force adjusting screw

Rebound damping setting:

Minimum (soft):

20 click(s) in direction (b)*

Standard:

7 click(s) in direction (b)*

Maximum (hard):

1 click(s) in direction (b)*

* With the adjusting screw fully

turned in direction (a)

Compression damping force

1. Remove the rubber cap by pulling
it out of the front fork leg.

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

4-8

and thereby soften the compres­sion damping, turn the adjusting
screw on each fork leg in direction
(b).

1. Rubber cap

2. Compression damping force adjusting
screw

Compression damping setting:

Minimum (soft):

20 click(s) in direction (b)*

Standard:

YZ85/YZ85F: 10 click(s) in direc­tion (b)*
YZ85LW/YZ85LWF: 9 click(s) in
direction (b)*

Maximum (hard):

1 click(s) in direction (b)*

* With the adjusting screw fully

turned in direction (a)

3. Install the rubber cap.

TIP

Although the total number of clicks of a

WARNING

TIP

damping force adjusting mechanism
may not exactly match the above
specifications 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 number of clicks of each
damping force adjusting mechanism
and to modify the specifications as
necessary.

INSTRUMENT AND CONTROL FUNCTIONS

EAU51651

Front fork bleeding

Always bleed both fork legs, other­wise poor handling and loss of sta­bility may result.

When riding in extremely rough condi­tions, the air temperature and pressure
in the front fork will rise. This will in­crease the spring preload and harden
the front suspension. If this occurs,
bleed the front fork as follows.

1. Lift the front wheel off the ground
according to the procedure on
page 7-28.

When bleeding the front fork, there
should be no weight on the front end of
the vehicle.

2. Remove the bleed screws and al­low all of the air to escape from
each fork leg.

EWA10201

1. Bleed screw

3. Install the bleed screws.

4. Lower the front wheel so that it is
on the ground, install the remov­able sidestand, and then rest the
motorcycle on it.

4

4-9

INSTRUMENT AND CONTROL FUNCTIONS

NOTICE

EAU41335

Adjusting the shock absorber assembly

This shock absorber assembly is
equipped with a spring preload adjust­ing nut, a rebound damping force ad­justing screw and a compression
damping force adjusting screw.

4

ECA10102

To avoid damaging the mechanism,
do not attempt to turn beyond the

maximum or minimum 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
preload and thereby soften the
suspension, turn the adjusting nut
in direction (b).

1. Locknut

2. Spring preload adjusting nut

 A special wrench can be ob-

tained at a Yamaha dealer to
make this adjustment.

 The spring preload setting is

determined by measuring
distance A, shown in the illus­tration. The longer distance A
is, the lower the spring pre­load; the shorter distance A
is, the higher the spring pre­load. With each complete
turn of the adjusting nut, dis­tance A is changed by 1.5
mm (0.06 in).

4-10

1. Distance A

Spring preload:

Minimum (soft):

Distance A = 218.5 mm (8.60 in)

Standard:YZ85/YZ85F

Distance A = 215.0 mm (8.46 in)

Standard:YZ85LW/YZ85LWF

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)

3. Tighten the locknut to the speci­fied torque. NOTICE: Always

tighten the locknut against the
adjusting nut, and then tighten
the locknut to the specified
torque.

[ECA10122]

INSTRUMENT AND CONTROL FUNCTIONS

TIP

Tightening torque:

Locknut:

35 Nm (3.5 m·kgf, 25 ft·lbf)

Rebound damping force

To increase the rebound damping
force and thereby harden the rebound
damping, turn the adjusting screw in
direction (a). To decrease the rebound
damping force and thereby soften the
rebound damping, turn the adjusting
screw in direction (b).

1. Rebound damping force adjusting screw

Rebound damping setting:

Minimum (soft):

20 click(s) in direction (b)*

Standard:YZ85/YZ85F

6 click(s) in direction (b)*

Standard:YZ85LW/YZ85LWF

7 click(s) in direction (b)*
For Europe only: 12 click(s) in di­rection (b)*

Maximum (hard):

1 click(s) in direction (b)*

* With the adjusting screw fully

turned in direction (a)

Compression damping force

To increase the compression damping
force and thereby harden the com­pression damping, turn the adjusting
screw in direction (a). To decrease the
compression damping force and there­by soften the compression damping,
turn the adjusting screw in direction (b).

4

1. Compression damping force adjusting
screw

Compression damping setting:

Minimum (soft):

15 click(s) in direction (b)*

Standard:YZ85/YZ85F

9 click(s) in direction (b)*

Standard:YZ85LW/YZ85LWF

7 click(s) in direction (b)*
For Europe only: 12 click(s) in di­rection (b)*

Maximum (hard):

1 click(s) in direction (b)*

* With the adjusting screw fully

turned in direction (a)

To obtain a precise adjustment, it is
advisable to check the actual total
number of clicks or turns of each

4-11

INSTRUMENT AND CONTROL FUNCTIONS

WARNING

TIP

WARNING

1

damping force adjusting mechanism.
This adjustment range may not exactly
match the specifications listed due to
small differences in production.

This shock absorber assembly con­tains highly pressurized nitrogen

4

gas. Read and understand the fol­lowing 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 ex­plode 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-

y yourself. Take the shock

sembl
absorber assembly to a Yamaha
dealer for any service.

EAU41382

Removable sidestand

EWA10222

1. Sidestand

This motorcycle is equipped with a re­movable sidestand.

Make sure that the sidestand is proper­ly secured when the motorcycle is be­ing supported or is being transported.

EWA14602

 Never apply force on the motor-

cycle while it is on the side-
stand.

 Always remove the sidestand

before starting out.

4-12

FOR YOUR SAFETY – PRE-OPERATION CHECKS

WARNING

EAU15598

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.

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 in
this manual, have the vehicle inspected by a Yamaha dealer.

Before using this vehicle, check the following points:

ITEM CHECKS PAGE

• Check fuel level in fuel tank.

• Always use a fresh mixture of gasoline and oil.

Fuel

Transmission oil • Check for leakage. 7-9

Coolant

Front brake

• Check fuel line for leakage.

• Check fuel tank breather hose for obstructions, cracks or damage, and check
hose connection.

• Check coolant level.

• If necessary, add recommended coolant to specified level.

• Check cooling system for leakage.

• 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.

4-3, 4-5

7-10

7-20, 7-20

EWA11152

5

5-1

FOR YOUR SAFETY – PRE-OPERATION CHECKS

ITEM CHECKS PAGE

• Check operation.

• If soft or spongy, have Yamaha dealer bleed hydraulic system.

• Check brake pads for wear.

Rear brake

Clutch

5

Throttle grip

Drive chain

Wheels and tires

Shift pedal

Brake pedal

Brake and clutch levers

Steering • Check that the handlebar can be turned smoothly and has no excessive play. 7-27

• Replace if necessary.

• Check fluid level in reservoir.

• If necessary, add specified brake fluid to specified level.

• Check hydraulic system for leakage.

• Check operation.

• Lubricate cable if necessary.

• Check lever free play.

• Adjust if necessary.

• Make sure that operation is smooth.

• Check throttle grip free play.

• If necessary, adjust throttle grip free play.

• Check chain slack.

• Adjust if necessary.

• Check chain condition.

• Lubricate if necessary.

•Check for damage.

• Check tire condition and tread depth.

• Check air pressure.

• Correct if necessary.

• Check for loose spokes and tighten if necessary.

• Make sure that operation is smooth.

• Correct if necessary.

• Make sure that operation is smooth.

• Lubricate pedal pivoting point if necessary.

• Make sure that operation is smooth.

• Lubricate lever pivoting points if necessary.

7-20, 7-20

7-18

7-15, 7-24

7-22, 7-23

7-15, 7-17

7-19

7-25

7-24

5-2

FOR YOUR SAFETY – PRE-OPERATION CHECKS

ITEM CHECKS PAGE

Front fork and rear shock ab-
sorber assembly

Chassis fasteners

Moving parts and cables

Exhaust system

Engine stop switch • Check operation. 4-1

Ignition system • Check that all leads and cables are properly connected. 7-8

• Check that they operate smoothly and there is no oil leakage. 4-8, 4-9, 4-10, 7-26

• Make sure that all nuts, bolts and screws are properly tightened.

• Tighten if necessary.

• Check 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.

• Check that the exhaust pipe is tightly mounted and has no cracks.

• Check for leakage.

7-24, 7-24, 7-26, 7-25

—

—

5

5-3

OPERATION AND IMPORTANT RIDING POINTS

WARNING

TIP

NOTICE

TIP

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.

Failure to familiarize yourself with
the controls can lead to loss of con­trol, which could cause an accident
or injury.

6

EAU15952

EWA10272

EAU41308

Starting and warming up a cold engine

1. Turn the fuel cock lever to “ON”.

2. Shift the transmission into the
neutral position.

3. Turn the starter (choke) on and
completely close the throttle. (See
page 4-6.)

4. Start the engine by pushing the
kickstarter lever down.

5. When the engine is warm, turn the
starter (choke) off.

The engine is warm when it responds
quickly to the throttle with the starter
(choke) turned off.

ECA11043

For maximum engine life, never ac-
celerate hard when the engine is
cold!

EAU16661

Starting a warm engine

Follow the same procedure as for
starting 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.

If the engine does not start after sever­al kicks, try again with the throttle 1/4
to 1/2 open.

6-1

OPERATION AND IMPORTANT RIDING POINTS

TIP

NOTICE

EAU16673

Shifting

1. Shift pedal

2. Neutral position

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 il­lustration.

To shift the transmission into the neu­tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it.

ECA10261

 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. Inade­quate lubrication may damage
the transmission.

 Always use the clutch while

changing gears to avoid dam­aging the engine, transmission,
and drive train, which are not
designed to withstand the
shock of forced shifting.

EAU16691

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 si­multaneously release the clutch
lever 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 posi­tion.)

6. Open the throttle halfway and
gradually release the clutch lever.

7. Follow the same procedure when
shifting to the next gear.

EAU16711

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 neu­tral position when the motorcycle
is almost completely stopped.

6

6-2

OPERATION AND IMPORTANT RIDING POINTS

WARNING

NOTICE

Engine break-in

Failure to properly maintain the vehi­cle or performing maintenance ac­tivities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle ser­vice, have a Yamaha dealer perform
service.

1. Before starting the engine, fill the

6

fuel tank with a break-in oil-fuel
mixture as follows.

Recommended 2-stroke engine oil:

See page 9-1.

Mixing ratio (gasoline to oil):

15:1

2. Start and warm up the engine.
Check the operation of the con­trols and the engine stop switch.
(See page 4-1.)

3. Operate the motorcycle in the
lower gears at moderate throttle
openings for five to eight minutes.
Stop the engine and check the

EAU41505

EWA10322

spark plug condition (see page
7-8); it will show a rich condition
during break-in.

4. Allow the engine to cool. Restart
the engine and operate the motor­cycle as in the step above for five
minutes. Then, very briefly shift to
the higher gears and check the
full-throttle response. Stop the en­gine and check the spark plug.

5. After again allowing the engine to
cool, restart and run the motorcy­cle for five more minutes. Full
throttle and the higher gears may
be used, but sustained full-throttle
operation should be avoided.
Stop the engine and check the
spark plug again.

6. Allow the engine to cool, remove
the cylinder head and cylinder,
and inspect the piston and cylin­der. Remove any high spots on
the piston with #600-grit wet
sandpaper. Clean all components
and carefully reassemble the cyl­inder head and cylinder.

7. Drain the break-in oil-fuel mixture
from the fuel tank and refill with
the specified mix. (See page 4-3.)

6-3

8. Start the engine and check the op­eration of the motorcycle through­out its entire operating range.
Stop the engine and check the
spark plug condition. Restart the
motorcycle and ride it for about 10
to 15 more minutes. The motorcy­cle will now be ready to ride nor­mally.

After the engine break-in period, thor­oughly check the motorcycle for loose
parts, oil leakage and any other prob­lems. Be sure to inspect and make ad­justments thoroughly, especially cable
and drive chain slack and loose
spokes. In addition, check all fittings
and fasteners for looseness, and tight­en if necessary.

ECA15561

 When any of the following parts

have been replaced, they must
be broken in.
Cylinder or crankshaft:
About one hour of break-in op­eration is necessary.
Piston, rings or transmission
gears:

OPERATION AND IMPORTANT RIDING POINTS

WARNING

These parts require about 30
minutes of break-in operation at
half-throttle or less. Observe the
condition of the engine carefully
during operation.

 If any engine trouble should oc-

cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi­cle.

EAU17192

Parking

When parking, stop the engine, and
then turn the fuel cock lever to “OFF”.

EWA10312

 Since the engine and exhaust

system can become very hot,
park in a place where pedestri-
ans or children are not likely to
touch them and be burned.

 Do not park on a slope or on soft

ground, otherwise the vehicle
may overturn, increasing the
risk of a fuel leak and fire.

 Do not park near grass or other

flammable materials which
might catch fire.

6

6-4

PERIODIC MAINTENANCE AND ADJUSTMENT

WARNING

WARNING

WARNING

Periodic inspection, adjustment, and
lubrication will keep your vehicle in the
safest and most efficient condition
possible. Safety is an obligation of the
vehicle owner/operator. The most im­portant points of vehicle inspection,
adjustment, and lubrication are ex­plained on the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a gen­eral guide under normal riding condi­tions. However, depending on the
weather, terrain, geographical location,

7

and individual use, the maintenance in­tervals may need to be shortened.

Failure to properly maintain the vehi­cle or performing maintenance ac­tivities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle ser­vice, have a Yamaha dealer perform
service.

EAU42074

EWA10322

EWA15123

Turn off the engine when performing
maintenance unless otherwise
specified.

 A running engine has moving

parts that can catch on body
parts or clothing and electrical
parts that can cause shocks or
fires.

 Running the engine while ser-

vicing can lead to eye injury,
burns, fire, or carbon monoxide
poisoning – possibly leading to
death. See page 2-2 for more in­formation about carbon monox­ide.

EWA15461

Brake discs, calipers, drums, and
linings can become very hot during
use. To avoid possible burns, let
brake components cool before
touching them.

7-1

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

NO. ITEM ROUTINE

After

break-in

Every

race

Every

third race

Every

fifth raceAsrequired

1 * Piston

• Check piston for carbon deposits and cracks or dam­age.

• Clean.

√

√

√

• Replace. √√

2 * Piston rings

• Check piston ring end gap and rings for damage. √

• Replace.

3 *

Piston pin and small
end bearing

• Check piston pin and small end bearing for damage. √

√√

• Replace. √

√

4 * Cylinder head

• Check cylinder head for carbon deposits.

• Clean.

√

√

√

• Check cylinder head gasket for damage.

• Replace cylinder head gasket.

• Tighten cylinder head nuts if necessary.

√

Periodic maintenance and lubrication chart

The following chart is intended as a general guide to maintenance and lubrication. Bear in mind that such factors as weath­er, terrain, geographical location, and individual usage will alter the required maintenance and lubrication intervals. If you
are in doubt as to what intervals to follow in maintaining and lubricating your motorcycle, consult your Yamaha dealer.

Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical
skills.

7-2

EAU4179A

7

PERIODIC MAINTENANCE AND ADJUSTMENT

√

5 * Cylinder

• Check cylinder for score marks or wear.

• Clean.

√

• Replace. √

NO. ITEM ROUTINE

After

break-in

Every

race

Every

third race

Every

fifth raceAsrequired

6 * Clutch

• Check clutch housing, friction plates, clutch plates
and clutch springs for wear or damage.

• Adjust.

√√

• Replace. √

7 * Transmission

• Change the transmission oil. √

• Check transmission for damage. √

• Replace bearings. √

8 *

Shift forks, guide bars,
shift cam

• Replace if necessary.

• Check all parts for wear and damage.

√

9 *

Rotor nut
(flywheel magneto)

• Tighten. √√

√

10 * Kickstarter system

• Check idle gear for damage.

√

• Replace if necessary.

11 * Exhaust system

• Check exhaust pipe and muffler for carbon deposits. √√

• Clean. √

√
√

√
√

12 * Crankshaft

• Check crankshaft for carbon deposits and damage.

• Clean.

7

7-3

PERIODIC MAINTENANCE AND ADJUSTMENT

NO. ITEM ROUTINE

After

break-in

Every

race

Every

third race

Every

fifth raceAsrequired

√
√

√

13 * Carburetor

• Check carburetor settings and for obstructions. √

• Adjust and clean. √

14 Spark plug

• Check condition.

• Clean and regap.

√

• Replace. √

15 Drive chain

• Check chain slack, alignment and condition.

• Adjust and thoroughly lubricate chain with Yamaha
chain and cable lube or equivalent.

√

√

√

√

√

• Replace. √

16 **Cooling system

• Check coolant level and for leakage. √√

• Check hoses for cracks or damage. √

• Check radiator cap spring operation. √

• Change coolant. Every 2 years √

17 * Chassis fasteners

• Check all chassis fitting and fasteners.

• Correct or tighten if necessary.

√

18 Air filter element

• Clean.

√

• Replace. √

19 * Frame • Clean and check for damage. √
20 * Fuel line • Clean and check for leakage. √√

7-4

7

PERIODIC MAINTENANCE AND ADJUSTMENT

√

√

21 * Brakes

• Adjust lever position and pedal height.

• Lubricate pivot points.

• Check brake disk surface.

• Check fluid level and for leakage.

• Tighten brake disk bolts, caliper bolts, master cylinder
bolts and union bolts.

√

• Replace brake pads. √

• Replace brake fluid. Every year √

22 * Front fork

• Replace oil seals.

• Replace fork oil.

•

Clean dust seal and lubricate with lithium-soap-based
grease.

•

Adjust if necessary.

• Check operation and for oil leakage.

√

√√

√

NO. ITEM ROUTINE

After

break-in

Every

race

Every

third race

Every

fifth raceAsrequired

√√

√

23 *

Shock absorber assem­bly

• Check operation and adjust.

• Tighten if necessary.

• Lubricate with

lithium-soap-based grease

. √

(After

washing

the
motorcycle
or riding in

the rain)

7

7-5

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

√

√√
√

24 *

Drive chain roller and
support guide

• Replace if necessary.

• Check for wear or damage.

√

25 * Rear suspension

• Check operation and tighten if necessary.

• Lubricate with

lithium-soap-based grease

.

NO. ITEM ROUTINE

After

break-in

Every

race

Every

third race

Every

fifth raceAsrequired

√

√

√

√

√

√

√√

√

√

√

√

√

√

√

26 * Steering head

• Check operation, free play, and tighten if necessary.

• Clean and lubricate with lithium-soap-based grease.

• Replace bearings.

27 * Tires and wheels

• Check 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 ca­bles

• Lubricate.

29 *

Throttle grip

• Check operation.

• Check throttle grip free play, and adjust if necessary.

• Lubricate cable and grip housing.

 Hydraulic brake service

• Regularly check and, if necessary, correct the brake fluid levels.

7-6

7

EAU42012

PERIODIC MAINTENANCE AND ADJUSTMENT

• Every two years replace the internal components of the brake master cylinders and calipers, and change the brake
fluid.

• Replace the brake hoses every four years and if cracked or damaged.

7

7-7

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

EAU19614

Checking the spark plug

The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plug should be removed and checked
in accordance with the periodic main­tenance and lubrication chart. In addi­tion, the condition of the spark plug
can reveal the condition of the engine.

To remove the spark plug

1. Remove the spark plug cap.

1. Spark plug cap

2. Remove the spark plug as shown,
with a spark plug wrench available
at a Yamaha dealer.

1. Spark plug wrench

To check the spark plug

1. Check that the porcelain insulator
around the center electrode of the
spark plug is a medium-to-light
tan (the ideal color when the vehi­cle is ridden normally).

If the spark plug shows a distinctly dif­ferent color, the engine could be oper­ating improperly. Do not attempt to
diagnose such problems yourself. In­stead, have a Yamaha dealer check
the vehicle.

2. Check the spark plug for electrode
erosion and excessive carbon or
other deposits, and replace it if
necessary.

Specified spark plug:

NGK/BR10EG

3. Measure the spark plug gap with a
wire thickness gauge and, if nec­essary, adjust the gap to specifi­cation.

7

1. Spark plug gap

Spark plug gap:

0.5–0.6 mm (0.020–0.024 in)

7-8

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

1

2

3

To install the spark plug

1. Clean the surface of the spark
plug gasket and its mating sur­face, and then wipe off any grime
from the spark plug threads.

2. Install the spark plug with the
spark plug wrench, and then tight­en it to the specified torque.

Tightening torque:

Spark plug:

20 Nm (2.0 m·kgf, 14 ft·lbf)

If a torque wrench is not available

7

when installing a spark plug, a good
estimate of the correct torque is 1/4–
1/2 turn past finger tight. However, the
spark plug should be tightened to the
specified torque as soon as possible.

3. Install the spark plug cap.

EAU41449

Transmission oil

The transmission must be checked for
oil leakage before each ride. If any
leakage is found, have a Yamaha deal­er check and repair the motorcycle. In
addition, the transmission oil must be
changed at the intervals specified in
the periodic maintenance and lubrica­tion chart.

1. Start the engine, warm it up for
several minutes, and then turn it
off.

2. Place the motorcycle on a level
surface and hold it in an upright
position.

3. Place an oil pan under the trans­mission case to collect the used
oil.

4. Remove the oil filler cap, the trans­mission oil drain bolt and its gas­ket to drain the oil from the
transmission.

1. Transmission oil filler cap

2. Transmission oil drain bolt

3. Gasket

5. Install the drain bolt and its new
gasket, and then tighten the bolt
to the specified torque.

Tightening torque:

Transmission oil drain bolt:

10 Nm (1.0 m·kgf, 7.2 ft·lbf)

6. Refill with the specified amount of
the recommended transmission
oil, and then install and tighten the
oil filler cap.

Recommended transmission oil:

7-9

See page 9-1.

Oil change quantity:

0.50 L (0.53 US qt, 0.44 Imp.qt)

PERIODIC MAINTENANCE AND ADJUSTMENT

NOTICE

TIP

TIP

1

1

ECA10453

 In order to prevent clutch slip-

page (since the transmission oil
also lubricates the clutch), do
not mix any chemical additives.
Do not use oils with a diesel
specification of “CD” or oils of a
higher quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.

 Make sure that no foreign mate-

rial enters the transmission.

7. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.

EAU20071

Coolant

The coolant level should be checked
before each ride. In addition, the cool­ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.

To check the coolant level

1. Place the vehicle on a level sur­face and hold it in an upright posi­tion.

 The coolant level must be

checked on a cold engine since
the level varies with engine tem­perature.

 Make sure that the vehicle is posi-

tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.

2. Remove the radiator cap and
check the coolant level in the radi­ator. WARNING! Never attempt

to remove the radiator cap
when the engine is hot.

EAUM1296

[EWA10382]

1. Radiator cap

The coolant should be at the bottom of
the radiator filler neck. The level will
change with variation of engine tem­perature.

1. Correct coolant level

7

7-10

PERIODIC MAINTENANCE AND ADJUSTMENT

12

1

3. If the coolant is below the correct
coolant level, add coolant, and
then install the radiator cap.

NOTICE: If coolant is not avail­able, use distilled water or soft
tap water instead. Do not use
hard water or salt water since it
is harmful to the engine. If water
has been used instead of cool­ant, replace it with coolant as
soon as possible, otherwise the
cooling system will not be pro­tected against frost and corro-
sion. If water has been added to
the coolant, have a Yamaha

7

dealer check the antifreeze con­tent of the coolant as soon as
possible, otherwise the effec­tiveness of the coolant will be
reduced.

[ECA10473]

To change the coolant

1. Place the vehicle on a level sur­face and let the engine cool if nec­essary.

2. Place a container under the en­gine to collect the used coolant.

3. Remove the coolant drain bolt and
its gasket, and then the radiator
cap to drain the cooling system.

WARNING! Never attempt to re­move the radiator cap when the
engine is hot.

[EWA10382]

4. After the coolant is completely
drained, thoroughly flush the cool­ing system with clean tap water.

5. Install the coolant drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.

Tightening torque:

Coolant drain bolt:

10 Nm (1.0 m·kgf, 7.2 ft·lbf)

6. Pour the recommended coolant
into the radiator until it is full.

Antifreeze/water mixture ratio:

1:1

1. Coolant drain bolt

2. Gasket

EAUM1317

Recommended antifreeze:

High-quality ethylene glycol anti­freeze containing corrosion inhibi­tors for aluminum engines

Coolant quantity:

Radiator (including all routes):

0.54 L (0.57 US qt, 0.48 Imp.qt)

7. Install the radiator cap, start the
engine, let it idle for several min­utes, and then turn it off.

8. Remove the radiator cap to check

1. Radiator cap

the coolant level in the radiator. If
necessary, add sufficient coolant

7-11

PERIODIC MAINTENANCE AND ADJUSTMENT

until it reaches the bottom of the
radiator filler neck, and then install
the radiator cap.

9. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.

EAU48392

Cleaning the air filter element

The air filter element should be cleaned
or replaced at the intervals specified in
the periodic maintenance and lubrica­tion chart. Clean or, if necessary, re­place the air filter element more
frequently if you are riding in unusually
wet or dusty areas.

1. Remove the seat. (See page 4-7.)

2. Remove the air filter case cover as
shown.

1. Air filter case cover

3. Remove the air filter element by
removing the wing bolt and its
washer.

7

1. Wing bolt

2. Washer

3. Air filter element

7-12

4. Remove the sponge material from
the air filter element frame.

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

1

2

1

The sponge material should be wet but
not dripping.

Recommended oil:

Yamaha foam air filter oil or other
quality foam air filter oil

7. Pull the sponge material over the

1. Sponge material

2. Air filter element frame

5. Clean the sponge material with
solvent, and then squeeze the re­maining solvent out.

7

air filter element frame.

8. Apply all-purpose grease to the air
filter element seat.

1. Air filter element seat

in the air filter case. The engine
should never be operated with­out the air filter element in­stalled, otherwise the piston(s)
and/or cylinder(s) may become
excessively worn.
NOTICE: Be sure to install the
washer with its curved side fac­ing outward as shown.

1. Air filter element

2. Projection

[ECA10482]

[ECA16692]

6. Apply oil of the recommended
type to the entire surface of the
sponge material, and then
squeeze the excess oil out.

9. Insert the air filter element into the
air filter case with the projection
facing upward, and then install the
wing bolt and its washer.

NOTICE: Make sure that the air
filter element is properly seated

7-13

PERIODIC MAINTENANCE AND ADJUSTMENT

NOTICE

1

1. Washer

10. Install the air filter case cover in
the original position as shown.

11. Install the seat.

EAU42111

Adjusting the carburetor

The carburetor is an important part of
the engine and requires very sophisti­cated adjustment. Therefore, most
carburetor adjustments should be left
to a Yamaha dealer, who has the nec­essary professional knowledge and ex­perience. The adjustment described in
the following section, however, may be
serviced by the owner as part of rou­tine maintenance.

ECA10551

The carburetor has been set and ex­tensively tested at the Yamaha fac-
tory. Changing these settings
without sufficient technical knowl­edge may result in poor perfor­mance of or damage to the engine.

EAU44391

Adjusting the engine idling speed

The engine idling speed must be ad­justed when necessary.

1. Start the engine and thoroughly
warm it up.

2. Turn the throttle stop screw until
the engine runs at the lowest pos­sible speed.

3. To increase the engine idling
speed, turn the throttle stop screw
in direction (a). To decrease the
engine idling speed, turn the throt­tle stop screw in direction (b).

7

1. Throttle stop screw

7-14

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

WARNING

2 3

(a)

(b)

1

Adjusting the throttle grip free play

1. Throttle grip free play

The throttle grip free play should mea­sure 3.0–5.0 mm (0.12–0.20 in) at the

7

inner edge of the throttle grip. Periodi­cally check the throttle grip free play
and, if necessary, adjust it as follows.

The engine idling speed must be cor­rectly adjusted before checking and
adjusting the throttle grip free play.

1. Slide the rubber cover back.

2. Loosen the locknut.

EAU48433

3. To increase the throttle grip free
play, turn the adjusting nut in di­rection (a). To decrease the throt­tle grip free play, turn the adjusting
nut in direction (b).

1. Locknut

2. Throttle grip free play adjusting nut

3. Rubber cover

4. Tighten the locknut and then slide
the rubber cover to its original po­sition.

EAU41825

Tires

Tires are the only contact between the
vehicle and the road. Safety in all con­ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci­fied tires.

Tire air pressure

The tire air pressure should be
checked and, if necessary, adjusted
before each ride.

EWA14382

Operation of this vehicle with im­proper tire pressure may cause se­vere injury or death from loss of
control.

 The tire air pressure must be

checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).

7-15

PERIODIC MAINTENANCE AND ADJUSTMENT

NOTICE

WARNING

1

2

 The tire air pressure must be

adjusted in accordance with the
weight of the rider, the riding
speed, and the riding condi­tions.

Standard tire air pressure:

Front:

100 kPa (1.00 kgf/cm², 15 psi)

Rear:

100 kPa (1.00 kgf/cm², 15 psi)

Tire inspection

1. Tire sidewall

2. Tire tread depth

The tires must be checked before each
ride.

ECA15581

 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 position
on the rim. Rotate the tire so
that the valve stem is positioned
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 re­place the tire immediately.

Minimum tire tread depth (front and
rear):

4.0 mm (0.16 in)

Tire information

This model is equipped with tube tires.
Tires age, even if they have not been
used or have only been used occasion­ally. Cracking of the tread and sidewall

rubber, sometimes accompanied by
carcass deformation, is an evidence of
ageing. Old and aged tires shall be
checked by tire specialists to ascertain
their suitability for further use.

EWA10462

The front and rear tires should be of
the same make and design, other­wise the handling characteristics of
the vehicle may be different, which
could lead to an accident.

After extensive tests, only the tires list­ed below have been approved for this
model by Yamaha.

7

7-16

PERIODIC MAINTENANCE AND ADJUSTMENT

WARNING

WARNING

Front tire:

Size:

YZ85 70/100-17 40M
YZ85F 70/100-17 40M
YZ85LW 70/100-19 42M
YZ85LWF 70/100-19 42M

Manufacturer/model:

DUNLOP/MX51F

Rear tire:

Size:

YZ85 90/100-14 49M
YZ85F 90/100-14 49M
YZ85LW 90/100-16 52M
YZ85LWF 90/100-16 52M

Manufacturer/model:

DUNLOP/MX51

7

 Have a Yamaha dealer replace

excessively worn tires. Operat­ing the motorcycle with exces­sively worn tires decreases
riding stability and can lead to
loss of control.

 The replacement of all wheel-

and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl­edge and experience.

EWA14391

 It is not recommended to patch

a punctured tube. If unavoid-
able, however, patch the tube
very carefully and replace it as
soon as possible with a high-
quality product.

7-17

EAU48322

Spoke wheels

EWA10611

The wheels on this model are not
designed for use with tubeless tires.

Do not attempt to use tubeless tires
on this model.

To maximize the performance, durabil­ity, and safe operation of your motor­cycle, note the following points
regarding the specified wheels.

 The wheel rims should be

checked for cracks, bends, warp­age or other damage and the
spokes for looseness or damage
before each ride. If any damage is
found, have a Yamaha dealer re­place the wheel. Do not attempt
even the smallest repair to the
wheel. A deformed or cracked
wheel must be replaced.

 The wheel should be balanced

whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han­dling characteristics, and a short­ened tire life.

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

1

2

(b)

(a)

1 2 3 4

(a)

(b)

EAU65772

Adjusting the clutch lever free play

The clutch lever free play should mea­sure 7.0–12.0 mm (0.28–0.47 in) as
shown. Periodically check the clutch
lever free play and, if necessary, adjust
it.
To increase the clutch lever free play,
turn the clutch lever free play adjuster
in direction (a). To decrease the clutch
lever free play, turn the adjuster in di­rection (b).

1. Clutch lever free play

2. Clutch lever free play adjuster

If the specified clutch lever free play
cannot be obtained as described
above, proceed as follows.

1. Fully turn the adjuster in direction
(a) to loosen the clutch cable.

2. Slide the rubber cover and clutch
lever free play adjuster back fur­ther down the clutch cable, and
then loosen the locknut.

3. To increase the clutch lever free
play, turn the clutch lever free play
adjusting bolt in direction (a). To
decrease the clutch lever free
play, turn the adjusting bolt in di­rection (b).

1. Locknut

2. Clutch lever free play adjusting bolt

3. Clutch lever free play adjuster

4. Rubber cover

4. Tighten the locknut at the clutch
cable, and then slide the clutch le­ver free play adjuster and rubber
cover to their original positions.

7

7-18

PERIODIC MAINTENANCE AND ADJUSTMENT

WARNING

Checking the brake lever free play

1. No brake lever free play

There should be no free play at the
brake lever end. If there is free play,

7

have a Yamaha dealer inspect the
brake system.

A soft or spongy feeling in the brake
lever can indicate the presence of
air in the hydraulic system. If there is
air in the hydraulic system, have a
Yamaha dealer bleed the system be-
fore operating the vehicle. Air in the
hydraulic system will diminish the

EAU37914

EWA14212

braking performance, which may re­sult in loss of control and an acci­dent.

EAU44821

Checking the shift pedal

The operation of the shift pedal should
be checked before each ride. If opera­tion is not smooth, have a Yamaha
dealer check the vehicle.

7-19

PERIODIC MAINTENANCE AND ADJUSTMENT

EAU22393

Checking the front and rear brake pads

The front and rear brake pads must be
checked for wear at the intervals spec­ified in the periodic maintenance and
lubrication chart.

EAU22411

Front brake pads

1. Brake pad wear indicator

Each front brake pad is provided with a
wear indicator, which allows you to
check the brake pad wear without hav­ing to disassemble the brake. To check
the brake pad wear, check the position
of the wear indicator while applying the
brake. If a brake pad has worn to the
point that the wear indicator almost

touches the brake disc, have a
Yamaha dealer replace the brake pads
as a set.

EAU46292

Rear brake pads

1. Brake pad wear indicator groove

Each rear brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear with­out having to disassemble the brake.
To check the brake pad wear, check
the wear indicator grooves. If a brake
pad has worn to the point that a wear
indicator groove almost appears, have
a Yamaha dealer replace the brake
pads as a set.

EAU22582

Checking the brake fluid level

Before riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the top
of the reservoir level. Replenish the
brake fluid if necessary.

Front brake

7

1. Minimum level mark

7-20

PERIODIC MAINTENANCE AND ADJUSTMENT

WARNING

NOTICE

Rear brake

1. Minimum level mark

Specified brake fluid:

DOT 4

7

Improper maintenance can result in
loss of braking ability. Observe
these precautions:

 Insufficient brake fluid may al-

low air to enter the brake sys­tem, reducing braking
performance.

 Clean the filler cap before re-

moving. Use only DOT 4 brake
fluid from a sealed container.

EWA15991

 Use only the specified brake flu-

id; otherwise, the rubber seals
may deteriorate, causing leak­age.

 Refill with the same type of

brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.

 Be careful that water does not

enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.

ECA17641

Brake fluid may damage painted
surfaces or plastic parts. Always
clean up spilled fluid immediately.

As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi­cate worn brake pads and/or brake
system leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake

fluid level goes down suddenly, have a
Yamaha dealer check the cause before
further riding.

7-21

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

EAU51721

Changing the brake fluid

Have a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica­tion chart. In addition, have the oil seals
of the master cylinders and calipers as
well as the brake hoses replaced at the
intervals listed below or whenever they
are damaged or leaking.

 Oil seals: Replace every two

years.

 Brake hoses: Replace every four

years.

EAU22762

Drive chain slack

The drive chain slack should be
checked before each ride and adjusted
if necessary.

EAU41413

To check the drive chain slack

1. Install the removable sidestand
and place the motorcycle on it.

When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.

2. Shift the transmission into the
neutral position.

3. Measure the drive chain slack as
shown.

Drive chain slack:

35.0–45.0 mm (1.38–1.77 in)

1. Drive chain slack

4. If the drive chain slack is incorrect,
adjust it as follows.

EAU41484

To adjust the drive chain slack

Consult a Yamaha dealer before ad­justing the drive chain slack.

1. Loosen the axle nut and the lock­nut on each side of the swingarm.

2. To tighten the drive chain, turn the
drive chain slack adjusting bolt on
each side of the swingarm in di­rection (a). To loosen the drive
chain, turn the adjusting bolt on
each side of the swingarm in di­rection (b), and then push the rear
wheel forward. NOTICE: Improp-

er drive chain slack will over-

7

7-22

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

NOTICE

TIP

5

4

32

load the engine as well as other
vital parts of the motorcycle and
can lead to chain slippage or
breakage. To prevent this from
occurring, keep the drive chain
slack within the specified limits.

[ECA10572]

Using the alignment marks on each
drive chain puller, make sure that both
drive chain pullers are in the same po­sition for proper wheel alignment.

7

1. Axle nut

2. Drive chain puller

3. Locknut

4. Drive chain slack adjusting bolt

5. Alignment marks

3. Tighten both locknuts and the axle
nut to the specified torques.

Tightening torques:

Locknut:

16 Nm (1.6 m·kgf, 12 ft·lbf)

Axle nut:

90 Nm (9.0 m·kgf, 65 ft·lbf)

4. Make sure that the drive chain
pullers are in the same position,
the drive chain slack is correct,
and the drive chain moves
smoothly.

EAU23018

Cleaning and lubricating the drive chain

The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica­tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.

ECA10584

The drive chain must be lubricated
after washing the motorcycle, riding
in the rain or riding in wet areas.

1. Remove all dirt and mud from the
drive chain with a brush or cloth.

For a thorough cleaning, have a
Yamaha dealer remove the drive chain
and soak it in solvent.

2. Spray Yamaha chain lubricant or
other suitable chain lubricant on
the entire chain, making sure that
all side plates and rollers have
been sufficiently oiled.

7-23

PERIODIC MAINTENANCE AND ADJUSTMENT

EAU23098

Checking and lubricating the cables

The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca­bles and cable ends should be lubri­cated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or re­place it. WARNING! Damage to the

outer housing of cables may result
in internal rusting and cause inter-
ference with cable movement. Re­place damaged cables as soon as
possible to prevent unsafe condi-

[EWA10712]

tions.

Recommended lubricant:

Yamaha cable lubricant or other
suitable cable lubricant

EAU23115

Checking and lubricating the throttle grip and cable

The operation of the throttle grip
should be checked before each ride. In
addition, the cable should be lubricat­ed by a Yamaha dealer at the intervals
specified in the periodic maintenance
chart.
The throttle cable is equipped with a
rubber cover. Make sure that the cover
is securely installed. Even though the
cover is installed correctly, it does not
completely protect the cable from wa­ter entry. Therefore, use care not to
pour water directly onto the cover or
cable when washing the vehicle. If the
cable or cover becomes dirty, wipe
clean with a moist cloth.

EAU23144

Checking and lubricating the brake and clutch levers

The operation of the brake and clutch
levers should be checked before each
ride, and the lever pivots should be lu­bricated if necessary.

Brake lever

7

Clutch lever

7-24

PERIODIC MAINTENANCE AND ADJUSTMENT

Recommended lubricants:

Brake lever:

Silicone grease

Clutch lever:

Lithium-soap-based grease

EAU23185

Checking and lubricating the brake pedal

The operation of the brake pedal
should be checked before each ride,

Lubricating the rear suspen­sion

EAU23252

and the pedal pivot should be lubricat­ed if necessary.

The pivoting points of the rear suspen­sion must be lubricated by a Yamaha

7

dealer at the intervals specified in the
periodic maintenance and lubrication

Recommended lubricant:

Lithium-soap-based grease

chart.

Recommended lubricant:

Lithium-soap-based grease

7-25

PERIODIC MAINTENANCE AND ADJUSTMENT

NOTICE

EAUM1653

Lubricating the swingarm piv­ots

The swingarm pivots must be lubricat­ed by a Yamaha dealer at the intervals
specified in the periodic maintenance
and lubrication chart.

Recommended lubricant:

Lithium-soap-based grease

EAU23273

Checking the front fork

The condition and operation of the
front fork must be checked as follows
at the intervals specified in the periodic
maintenance and lubrication chart.

To check the condition

Check the inner tubes for scratches,
damage and excessive oil leakage.

To check the operation

1. Place the vehicle on a level sur­face and hold it in an upright posi­tion. WARNING! To avoid injury,

securely support the vehicle so
there is no danger of it falling

[EWA10752]

over.

2. While applying the front brake,
push down hard on the handle­bars several times to check if the
front fork compresses and re­bounds smoothly.

ECA10591

If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.

7

7-26

PERIODIC MAINTENANCE AND ADJUSTMENT

Checking the steering

Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol­lows at the intervals specified in the
periodic maintenance and lubrication
chart.

1. Place a stand under the engine to
raise the front wheel off the
ground. (See page 7-28 for more
information.) WARNING! To

avoid injury, securely support
the vehicle so there is no danger
of it falling over.

2. Hold the lower ends of the front

7

fork legs and try to move them for­ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steer­ing.

[EWA10752]

EAU23284

EAU23292

Checking the wheel bearings

The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica­tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.

7-27

PERIODIC MAINTENANCE AND ADJUSTMENT

WARNING

EAU24351

Supporting the motorcycle

Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte­nance requiring the motorcycle to
stand upright. Check that the motorcy­cle is in a stable and level position be­fore starting any maintenance. A
strong wooden box can be placed un­der the engine for added stability.

To service the front wheel

1. Stabilize the rear of the motorcy­cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing a
jack under the frame in front of the
rear wheel.

2. Raise the front wheel off the
ground by using a motorcycle
stand.

To service the rear wheel

Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor­cycle stand is not available, by placing

a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.

EAU24361

Front wheel

EAU56371

To remove the front wheel

EWA10822

To avoid injury, securely support the
vehicle so there is no danger of it
falling over.

1. Loosen the axle nut.

7

1. Washer

2. Axle nut

2. Lift the front wheel off the ground
according to the procedure in the
previous section “Supporting the
motorcycle”.

7-28

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

WARNING

3. Remove the axle nut and washer.

4. Pull the wheel axle out, and then
remove the wheel. NOTICE: Do

not apply the brake after the
wheel and brake disc have been
removed, otherwise the brake
pads will be forced shut.

7

1. Wheel axle

To install the front wheel

1. Lift the wheel up between the fork
legs.

Make sure that there is enough space
between the brake pads before install­ing the wheel.

[ECA11073]

3. Lower the front wheel so that it is
on the ground, install the remov­able sidestand, and then rest the
motorcycle on it.

4. Install the washer and axle nut,
and then tighten the axle nut to the
specified torque.

Tightening torque:

Axle nut:

70 Nm (7.0 m·kgf, 51 ft·lbf)

EAU25081

Rear wheel

EAU56741

To remove the rear wheel

EWA10822

To avoid injury, securely support the
vehicle so there is no danger of it
falling over.

1. Loosen the axle nut.

2. Lift the rear wheel off the ground
according to the procedure on
page 7-28.

3. Fully loosen the locknut, and then
loosen the drive chain slack ad­justing bolt on each side of the
swingarm.

4. Remove the axle nut and washer.

2. Insert the wheel axle from the right
side.

7-29

PERIODIC MAINTENANCE AND ADJUSTMENT

TIP

TIP

TIP

2

1

1. Axle nut

2. Washer

3. Locknut

4. Drive chain slack adjusting bolt

5. Push the wheel forward, and then
remove the drive chain from the
rear sprocket.

 If the drive chain is difficult to re-

move, remove the wheel axle first,
and then lift the wheel upward
enough to remove the drive chain
from the rear sprocket.

 The drive chain does not need to

be disassembled in order to re­move and install the rear wheel.

6. While supporting the brake caliper
and slightly lifting the wheel, pull
the wheel axle out.

1. Wheel axle

A rubber mallet may be useful to tap
the wheel axle out.

7. Remove the wheel. NOTICE: Do

not apply the brake after the
wheel and brake disc have been
removed, otherwise the brake
pads will be forced shut.

[ECA11073]

To install the rear wheel

1. Install the drive chain onto the rear
sprocket.

2. Install the wheel and the brake cal­iper bracket by inserting the wheel
axle from the right-hand side.

 Make sure that the slot in the

brake caliper bracket is fit over the
retainer on the swingarm.

 Make sure that there is enough

space between the brake pads
before installing the wheel.

7

1. Retainer

2. Slot

3. Install the washer and axle nut.

4. Lower the rear wheel so that it is
on the ground, install the remov­able sidestand, and then rest the
motorcycle on it.

7-30

PERIODIC MAINTENANCE AND ADJUSTMENT

WARNING

5. Adjust the drive chain slack. (See
page 7-22.)

6. Tighten the locknuts and the axle
nut to their specified torques.

Tightening torque:

Locknut:

16 Nm (1.6 m·kgf, 12 ft·lbf)

Axle nut:

90 Nm (9.0 m·kgf, 65 ft·lbf)

7

EAU25872

Troubleshooting

Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your­self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace­ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.

EWA15142

heaters or furnaces. Gasoline or
gasoline vapors can ignite or ex­plode, causing severe injury or prop­erty damage.

When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar­ea, including pilot lights from water

7-31

PERIODIC MAINTENANCE AND ADJUSTMENT

Check the fuel level in
the fuel tank.

1. Fuel

There is
enough fuel.

There is
no fuel.

Supply fuel.

Check the ignition.

The engine does not start.
Check the ignition.

Operate the kickstarter.

3. Compression

There is compression.

There is
no compression.

The engine does not start.
Have a Yamaha dealer check the vehicle.

Have a Yamaha dealer
check the vehicle.

Remove the spark plug
and check the electrodes.

2. Ignition

Wet

Dry

Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.

Have a Yamaha dealer check the vehicle.

The engine does not start.
Check the compression.

Open the throttle halfway and operate
the kickstarter.

Troubleshooting charts

Starting problems or poor engine performance

EAU41495

7-32

7

PERIODIC MAINTENANCE AND ADJUSTMENT

WARNING

TIP

Wait until the
engine has cooled.

Check the coolant level in the
radiator.

The coolant level
is OK.

The coolant level is low.
Check the cooling system
for leakage.

Have a Yamaha dealer check

and repair the cooling system.

Add coolant. (See TIP.)

Start the engine. If the engine overheats again, have a

Yamaha dealer check

and repair the cooling system.

There is
leakage.

There is
no leakage.

Engine overheating

 Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be

 Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the

7

If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool­ant as soon as possible.

EWAT1041

blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

detent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the cap
while turning it counterclockwise, and then remove the cap.

7-33

MOTORCYCLE CARE AND STORAGE

NOTICE

NOTICE

EAU37834

Matte color caution

ECA15193

Some models are equipped with
matte colored finished parts. Be
sure to consult a Yamaha dealer for
advice on what products to use be­fore cleaning the vehicle. Using a
brush, harsh chemical products or
cleaning compounds when cleaning
these parts will scratch or damage
their surface. Wax also should not
be applied to any matte colored fin­ished parts.

EAU41359

Care

While the open design of a motorcycle
reveals the attractiveness of the tech­nology, it also makes it more vulnera­ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go un­noticed on a car, however, it detracts
from the overall appearance of a mo­torcycle. Frequent and proper care
does not only comply with the terms of
the warranty, but it will also keep your
motorcycle looking good, extend its
life and optimize its performance.

Before cleaning

1. Cover the muffler outlet with a
plastic bag after the engine has
cooled down.

2. Make sure that all caps and cov­ers as well as all electrical cou­plers and connectors, including
the spark plug cap, are tightly in­stalled.

3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod-

ucts onto seals, gaskets, sprock­ets, the drive chain and wheel
axles. Always rinse the dirt and
degreaser off with water.

Cleaning

ECA17692

 Avoid using strong acidic wheel

cleaners, especially on spoked
wheels. If such products are
used on hard-to-remove dirt, do
not leave the cleaner on the af­fected area any longer than in­structed. Also, thoroughly rinse
the area off with water, immedi-
ately dry it, and then apply a cor-
rosion protection spray.

 Improper cleaning can damage

plastic parts (such as cowlings,
panels, etc.) and the mufflers.
Use only a soft, clean cloth or
sponge with water to clean
plastic. However, if the plastic
parts cannot be thoroughly
cleaned with water, diluted mild
detergent with water may be
used. Be sure to rinse off any

8

8-1

MOTORCYCLE CARE AND STORAGE

WARNING

detergent residue using plenty
of water, as it is harmful to plas­tic parts.

 Do not use any harsh chemical

products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake fluid,
antifreeze or electrolyte.

 Do not use high-pressure wash-

ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar­eas: seals (of wheel and swing-

8

arm bearings, fork and brakes),
electric components (couplers,
connectors, and switches),
breather hoses and vents.

After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt

and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain or near the sea
Since sea salt is extremely corrosive,
carry out the following steps after each
ride in the rain or near the sea.

1. Clean the motorcycle with cold
water and a mild detergent, after
the engine has cooled down.

NOTICE: Do not use warm wa­ter since it increases the corro­sive action of the salt.

[ECA10792]

2. Apply a corrosion protection spray
on all metal, including chrome­and nickel-plated, surfaces to pre­vent corrosion.

After cleaning

1. Dry the motorcycle with a chamois
or an absorbing cloth.

2. Immediately dry the drive chain
and lubricate it to prevent it from
rusting.

3. Use a chrome polish to shine
chrome, aluminum and stainless­steel parts, including the exhaust
system.

4. To prevent corrosion, it is recom­mended to apply a corrosion pro­tection spray on all metal,
including chrome- and nickel-plat­ed, surfaces.

5. Use spray oil as a universal clean­er to remove any remaining dirt.

6. Touch up minor paint damage
caused by stones, etc.

7. Wax all painted surfaces.

8. Let the motorcycle dry completely
before storing or covering it.

EWA11132

Contaminants on the brakes or tires
can cause loss of control.

 Make sure that there is no oil or

wax on the brakes or tires.

 If necessary, clean the brake

discs and brake linings with a

regular brake disc cleaner or
acetone, and wash the tires with
warm water and a mild deter­gent. Before riding at higher
speeds, test the motorcycle’s
braking performance and cor­nering behavior.

8-2

MOTORCYCLE CARE AND STORAGE

NOTICE

TIP

NOTICE

ECA10801

 Apply spray oil and wax spar-

ingly and make sure to wipe off
any excess.

 Never apply oil or wax to any

rubber and plastic parts, but
treat them with a suitable care
product.

 Avoid using abrasive polishing

compounds as they will wear
away the paint.

Consult a Yamaha dealer for advice on
what products to use.

EAU41515

Storage

Short-term

Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys­tem are cool before covering the mo­torcycle.

ECA10811

 Storing the motorcycle in a

poorly ventilated room or cover­ing it with a tarp, while it is still
wet, will allow water and humid-
ity to seep in and cause rust.

 To prevent corrosion, avoid

damp cellars, stables (because

of the presence of ammonia)
and areas where strong chemi­cals are stored.

Long-term

Before storing your motorcycle for sev­eral months:

1. Follow all the instructions in the
“Care” section of this chapter.

8-3

2. For motorcycles equipped with a
fuel cock that has an “OFF” posi­tion: Turn the fuel cock lever to
“OFF”.

3. Drain the fuel tank and fuel lines,
and the carburetor float chamber
by loosening the drain bolt; this
will prevent fuel deposits from
building up.

4. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.
a. Remove the spark plug cap

and spark plug.

b. Pour a teaspoonful of engine

oil into the spark plug bore.

c. Install the spark plug cap onto

the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark­ing during the next step.)

d. Turn the engine over several

times with the starter. (This will
coat the cylinder wall with oil.)

e. Remove the spark plug cap

from the spark plug, and then
install the spark plug and the
spark plug cap. WARNING! To

8

MOTORCYCLE CARE AND STORAGE

TIP

prevent damage or injury
from sparking, make sure to
ground the spark plug elec­trodes while turning the en­gine over.

5. Lubricate all control cables and
the pivoting points of all levers and
brake pedal.

6. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna­tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.

7. Cover the muffler outlet with a

8

plastic bag to prevent moisture
from entering it.

Make any necessary repairs before
storing the motorcycle.

[EWA10952]

8-4

SPECIFICATIONS

Dimensions:

Overall length:

YZ85 1821 mm (71.7 in)
YZ85F 1821 mm (71.7 in)
YZ85LW 1899 mm (74.8 in)
YZ85LWF 1899 mm (74.8 in)

Overall width:

758 mm (29.8 in)

Overall height:

YZ85 1126 mm (44.3 in)
YZ85F 1126 mm (44.3 in)
YZ85LW 1156 mm (45.5 in)
YZ85LWF 1156 mm (45.5 in)

Seat height:

YZ85 841 mm (33.1 in)
YZ85F 841 mm (33.1 in)
YZ85LW 873 mm (34.4 in)
YZ85LWF 873 mm (34.4 in)

Wheelbase:

YZ85 1257 mm (49.5 in)
YZ85F 1257 mm (49.5 in)
YZ85LW 1285 mm (50.6 in)
YZ85LWF 1285 mm (50.6 in)

Ground clearance:

YZ85 330 mm (12.99 in)
YZ85F 330 mm (12.99 in)
YZ85LW 360 mm (14.17 in)
YZ85LWF 360 mm (14.17 in)

Weight:

Curb weight:

YZ85 71 kg (157 lb)
YZ85F 71 kg (157 lb)
YZ85LW 73 kg (161 lb)
YZ85LWF 73 kg (161 lb)

Engine:

Engine type:

Liquid cooled 2-stroke

Cylinder arrangement:

Single cylinder

Displacement:

85 cm³

Bore × stroke:

47.5 × 47.8 mm (1.87 × 1.88 in)

Compression ratio:

8.1 : 1

Starting system:

Kickstarter

Lubrication system:

Premix

Engine oil:

Type:

YAMALUBE 2R

Transmission oil:

Type:

YAMALUBE 4 (10W-40) or SAE 10W-40

Oil change quantity:

0.50 L (0.53 US qt, 0.44 Imp.qt)

Coolant quantity:

Radiator (including all routes):

0.54 L (0.57 US qt, 0.48 Imp.qt)

Air filter:

Air filter element:

Wet element

Fuel:

Recommended fuel:

Premium unleaded gasoline only

Fuel tank capacity:

5.0 L (1.32 US gal, 1.10 Imp.gal)

9-1

Carburetor:

Type × quantity:

PWK28 x 1

Spark plug(s):

Manufacturer/model:

NGK/BR10EG

Spark plug gap:

0.5–0.6 mm (0.020–0.024 in)

Clutch:

Clutch type:

Wet, multiple-disc

Transmission:

Primary reduction ratio:

3.611 (65/18)

Final drive:

Chain

Secondary reduction ratio:

YZ85 3.428 (48/14)
YZ85F 3.428 (48/14)
YZ85LW 3.714 (52/14)
YZ85LWF 3.714 (52/14)

Transmission type:

Constant mesh 6-speed

Operation:

Left foot operation

Gear ratio:

1st:

2.454 (27/11)

2nd:

1.882 (32/17)

3rd:

1.529 (26/17)

4th:

1.294 (22/17)

9

SPECIFICATIONS

9

5th:

1.130 (26/23)

6th:

1.000 (25/25)

Chassis:

Frame type:

Semi double cradle

Caster angle:

YZ85 26.30 °
YZ85F 26.30 °
YZ85LW 26.00 °
YZ85LWF 26.00 °

Trail:

YZ85 88 mm (3.5 in)
YZ85F 88 mm (3.5 in)
YZ85LW 99 mm (3.9 in)
YZ85LWF 99 mm (3.9 in)

Front tire:

Type:

With tube

Size:

YZ85 70/100-17 40M
YZ85F 70/100-17 40M
YZ85LW 70/100-19 42M
YZ85LWF 70/100-19 42M

Manufacturer/model:

DUNLOP/MX51F

Rear tire:

Type:

With tube

Size:

YZ85 90/100-14 49M
YZ85F 90/100-14 49M
YZ85LW 90/100-16 52M
YZ85LWF 90/100-16 52M

Manufacturer/model:

DUNLOP/MX51

Tire air pressure (measured on cold
tires):

Front:

100 kPa (1.00 kgf/cm², 15 psi)

Rear:

100 kPa (1.00 kgf/cm², 15 psi)

Front wheel:

Wheel type:

Spoke wheel

Rim size:

YZ85 17x1.40
YZ85F 17x1.40
YZ85LW 19x1.40
YZ85LWF 19x1.40

Rear wheel:

Wheel type:

Spoke wheel

Rim size:

YZ85 14x1.60
YZ85F 14x1.60
YZ85LW 16x1.85
YZ85LWF 16x1.85

Front brake:

Type:

Single disc brake

Operation:

Right hand operation

9-2

Specified brake fluid:

DOT 4

Rear brake:

Type:

Single disc brake

Operation:

Right foot operation

Specified brake fluid:

DOT 4

Front suspension:

Type:

Telescopic fork

Spring/shock absorber type:

Coil spring/oil damper

Wheel travel:

275 mm (10.8 in)

Rear suspension:

Type:

Swingarm (link suspension)

Spring/shock absorber type:

Coil spring/gas-oil damper

Wheel travel:

YZ85 282 mm (11.1 in)
YZ85F 282 mm (11.1 in)
YZ85LW 287 mm (11.3 in)
YZ85LWF 287 mm (11.3 in)

Electrical system:

Ignition system:

CDI

CONSUMER INFORMATION

TIP

1

EAU53562

Identification numbers

Record the vehicle identification num­ber, engine serial number, and the
model label information in the spaces
provided below. These identification
numbers are needed when registering
the vehicle with the authorities in your
area and when ordering spare parts
from a Yamaha dealer.

VEHICLE IDENTIFICATION NUMBER:

ENGINE SERIAL NUMBER:

MODEL LABEL INFORMATION:

Vehicle identification number

1. Vehicle identification number 1. Engine serial number

The vehicle identification number is
stamped into the steering head pipe.

EAU26401

Engine serial number

The engine serial number is stamped

into the crankcase.
Record this number in the space pro­vided.

Model label

The vehicle identification number is
used to identify your motorcycle and
may be used to register your motorcy­cle with the licensing authority in your
area.

EAU26442

EAU26461

10

1. Model label

10-1

CONSUMER INFORMATION

The model label is affixed to the loca­tion shown. Record the information on
this label in the space provided. This
information will be needed when order­ing spare parts from a Yamaha dealer.

10

10-2

INDEX

A

Air filter element, cleaning ....................7-12

B

Brake and clutch levers, checking and

lubricating........................................... 7-24

Brake fluid, changing............................7-22

Brake fluid level, checking.................... 7-20

Brake lever..............................................4-2

Brake lever free play, checking ............ 7-19

Brake pedal ............................................ 4-3

Brake pedal, checking and

lubricating........................................... 7-25

C

Cables, checking and lubricating......... 7-24

Carburetor, adjusting............................ 7-14

Care ........................................................8-1

Clutch lever.............................................4-1

Clutch lever free play, adjusting........... 7-18

Coolant................................................. 7-10

D

Drive chain, cleaning and lubricating ...7-23

Drive chain slack ..................................7-22

E

Engine break-in ...................................... 6-3

Engine idling speed.............................. 7-14

Engine serial number ............................ 10-1

Engine, starting a warm.......................... 6-1

Engine stop switch................................. 4-1

F

Front and rear brake pads, checking ... 7-20

Front fork, adjusting ...............................4-8

Front fork, bleeding ................................4-9

Front fork, checking ............................. 7-26

Fuel......................................................... 4-3

Fuel cock................................................ 4-6

Fuel tank breather hose ......................... 4-5

Fuel tank cap.......................................... 4-3

H

Handlebar switch ................................... 4-1

I

Identification numbers ......................... 10-1

K

Kickstarter.............................................. 4-7

L

Labels, location ...................................... 1-1

M

Matte color, caution ............................... 8-1

Model label........................................... 10-1

P

Parking ................................................... 6-4

Part locations ......................................... 3-1

Periodic maintenance and lubrication

chart..................................................... 7-2

R

Rear suspension, lubricating................ 7-25

S

Safety information.................................. 2-1

Seat........................................................ 4-7

Shifting................................................... 6-2

Shift pedal.............................................. 4-2

Shift pedal, checking ........................... 7-19

Shock absorber assembly, adjusting... 4-10

Sidestand............................................. 4-12

Spark plug, checking ............................. 7-8

Specifications......................................... 9-1

Starter (choke) knob............................... 4-6

Starting and warming up a cold

engine .................................................. 6-1

11-1

Steering, checking................................7-27

Storage ...................................................8-3

Supporting the motorcycle...................7-28

Swingarm pivots, lubricating ................7-26

T

Throttle grip and cable, checking and

lubricating...........................................7-24

Throttle grip free play, adjusting ........... 7-15

Tires ......................................................7-15

Transmission oil......................................7-9

Troubleshooting....................................7-31

Troubleshooting charts.........................7-32

V

Vehicle identification number ............... 10-1

W

Wheel bearings, checking .................... 7-27

Wheel (front)..........................................7-28

Wheel (rear)...........................................7-29

Wheels..................................................7-17

11

EAU53772

WARNING

ALWAYS

:

• use proper riding techniques to avoid
vehicle overturns on hills and rough
terrain and in turns.

• avoid paved surfaces—pavement may
seriously affect handling and control.

Improper motorcycle use can result in SEVERE INJURY or DEATH.

ALWAYS USE

AN APPROVED

HELMET AND

PROTECTIVE GEAR

NEVER USE

ON PAVED

ROADS

NEVER CARRY

PASSENGERS

NEVER

operate:

• without proper training or instruction.

• at speeds too fast for your skills or the
conditions.

• on public roads—a collision can occur with
another vehicle.

• with a passenger—passengers affect
balance and steering and increase risk
of losing control.

LOCATE AND READ OWNER’S MANUAL. FOLLOW ALL INSTRUCTIONS AND WARNINGS.

PRINTED ON RECYCLED PAPER PRINTED IN JAPAN

2014.09-0.4×1 CR

(E)