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
©2002 by Yamaha Motor Corporation, U.S.A.
1st Edition, April 2002
All rights reserved. Any reprinting or
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.
N
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.
1
Helmet
2
Goggles
3
Mouth guard
4
Gloves
5
Boots
6
Motocross pants
7
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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