Yamaha TT-R90(R) User manual

TT-R90R

5HN-28199-13

LIT-11626-16-27

OWNER’S SERVICE MANUAL

EC010000

TT-R90R

OWNER’S SERVICE MANUAL

1st Edition, April 2002

unauthorized use without the written

permission of Yamaha Motor Corporation

U.S.A. is expressly prohibited.

Printed in Japan

P/N. LIT-11626-16-27

INTRODUCTION

Congratulations on your purchase of a

Yamaha TT-R90R. This model is the culmina-

tion of Yamaha’s vast experience in the pro-

duction of pacesetting racing machines. It

represents the highest grade of craftsmanship

and reliability that have made Yamaha a

leader.

This manual explains operation, inspection,

basic maintenance and tuning of your

machine. If you have any questions about this

manual or your machine, please contact your

Yamaha dealer.

OTE:

As improvements are made on this model,

some data in this manual may become out-

dated. If you have any questions, please con-

sult your Yamaha dealer.

WARNING

●

READ THIS MANUAL CAREFULLY FOR

INSTRUCTIONS ON HOW TO PROPERLY

OPERATE THIS MACHINE.

●

ADULT INSTRUCTION AND SUPERVI-

SION ARE REQUIRED.

●

WEIGHT OF THE RIDER SHOULD NOT

EXCEED 40 kg (88 lb).

●

ALWAYS WEAR A HELMET AND SUIT-

ABLE PROTECTIVE CLOTHING WHEN

RIDING.

●

DO NOT TOUCH ANY MOVING PARTS OR

HEATED AREAS.

●

ALWAYS PERFORM PRE-OPERATION

CHECKS. REFER TO PAGE 15.

●

THIS MACHINE IS DESIGNED TO CARRY

THE OPERATOR ONLY.

NO PASSENGERS.

●

THIS MACHINE IS DESIGNED OFF-ROAD

USE ONLY.

IT IS NOT SUITABLE FOR ON-ROAD USE.

IMPORTANT NOTICE

This machine is designed for off-road use only

by young operators under adult instruction and

supervision. It is illegal for this machine to be

operated on any public street, road, or high-

way.

Off-road use on public lands may be illegal.

Please check local regulations before riding.

1. GASOLINE IS HIGHLY FLAMMABLE:

* Always turn off the engine when

refueling.

* Take care not to spill on the engine

or exhaust pipe/muffler, when refu-

eling.

* Never refuel while smoking or in

the vicinity of an open flame.

2. If you should swallow some gasoline

or inhale a lot of gasoline vapor, or

allow some gasoline to get in your

eye(s), see your doctor immediately.

If any gasoline spills on your skin or

clothing, immediately wash it with

soap and water, and change your

clothes.

3. Always turn off the engine before

leaving the machine unattended.

When parking the machine, note the

following:

* The engine and exhaust pipe(s)/

muffler(s) may be hot. Park the

machine in a place where pedestri-

ans or children are not likely to

touch the machine.

* Do not park the machine on a slope

or soft ground; the machine may

overturn.

SAFETY INFORMATION

4. When transporting the machine in

another vehicle, be sure is kept

upright and that the fuel cock is

turned to the “OFF”. If it should lean

over, gasoline may leak out of the car-

buretor or fuel tank.

5. Never start your engine or let it run for

any length of time in a closed area.

The exhaust fumes are poisonous and

may cause loss of consciousness and

death within a short time. Always

operate your machine in an area with

adequate ventilation.

6. Always wear a helmet, gloves, boots,

trousers, and jacket for motocross

riding.

SAFETY INFORMATION

1. Don’t ride it on the street.

2. Don’t run the engine inside a building.

3. This is a one-seater motorbike. Don’t give

any person a ride.

4. Let’s learn how to ride properly. Ask your

parents for any question.

5. When riding the machine, be sure to wear

the protective apparel as illustrated.

Helmet

Goggles

Mouth guard

Gloves

Boots

Motocross pants

Long sleeved trainer

6. When going for riding, be sure to be with

your family.

Never go alone.

7. Before riding the machine, ask your par-

ents to check the machine very carefully.

8. Don’t touch the areas shown, or you’ll get

burnt in the hand.

9. Don’t touch rotating or moving parts.

10. Before starting the engine, be sure to shift

the transmission into neutral.

EC080000

HOW TO USE

THIS MANUAL

EC081000

PARTICULARLY IMPORTANT

INFORMATION

The Safety Alert Symbol means ATTENTION!

BECOME ALERT! YOUR SAFETY IS

INVOLVED!

Failure to follow WARNING instructions could

result in severe injury or death to the machine

operator, a bystander, or a person inspecting

or repairing the machine.

A CAUTION indicates special precautions that

must be taken to avoid damage to the

machine.

NOTE:

A NOTE provides key information to make pro-

cedures easier or clearer.

EC082000

FINDING THE REQUIRED PAGE

1. This manual consists of six chapters;

“General Information”, “Specifications”,

“Regular inspection and adjustments”,

“Engine”, “Chassis”and “Electrical”.

2. The table of contents is at the beginning

of the manual. Look over the general lay-

out of the book before finding then

required chapter and item.

Bend the book at its edge, as shown, to

find the required fore edge symbol mark

and go to a page for required item and

description.

WARNING

CAUTION:

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