Yamaha NYTRO, RS RAGE, NYTRO ER, RS VECTOR GT, RS VECTOR ER User Manual
OWNER’S MANUAL
SNOWMOBILE
RSG90W/RSG90GTW
LIT-12628-02-55
RS90NW
RS90RW/RS90NRW
RS90MW/RS90MSW
RS90GTW
8GG-28199-12
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A
ESU00286
1-
MACHINE IDENTIFICATION
Identification number records
A. FRAME NUMBER:
CZ-01E
B
B. ENGINE NUMBER (PRIMARY ID):
CZ-01E
C. KEY NUMBER:
C
CZ-01E
Record the frame number, engine number (Primary ID),
and key number in the spaces provided for assistance
when ordering spare parts from a Yamaha dealer.
1
The
frame number
is the seventeen-digit number
stamped on the frame of the snowmobile. (See
fig.È.)
2
The
engine number
is stamped in the location as
shown. (See fig. É.)
3
Key number
(See fig. Ê.)
Also, record and keep the ID numbers in a separate
place in case the snowmobile is stolen.
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ESU00011
2-
INTRODUCTION
Congratulations on your purchase of a Yamaha snowmobile. This model is the result of Yamaha’s vast experience
in the production of fine sporting and touring snowmobiles. 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 snowmobile. If you have any questions concerning the operation
or maintenance of your snowmobile, please consult a
Yamaha dealer.
To maintain the high quality and performance of this
snowmobile, it is important that you and your Yamaha
dealer pay close attention to the recommended maintenance schedules and operating instructions contained
within this manual.
RS90NW
RS90RW/RS90NRW
RS90MW/RS90MSW
RS90GTW
RSG90W/RSG90GTW
OWNER’S MANUAL
©2006 by Yamaha Motor Corporation, U.S.A.
1st Edition, March 2006
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-12628-02-55
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@
PLEASE READ AND UNDERSTAND THIS MANUAL
COMPLETELY BEFORE OPERATING THE SNOWMOBILE.
@
NOTE:
@
●
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 snowmobile and this manual. If
there is any question concerning this manual, please
consult a Yamaha dealer.
●
This manual should be considered a permanent part
of this snowmobile and should remain with the snowmobile when resold.
@
Particularly important information is distinguished in this
manual by the following notations.
WARNING
The Safety Alert Symbol means ATTENTION! BECOME
ALERT! YOUR SAFETY IS INVOLVED!
WARNING
@
Failure to follow WARNING instructions could result in
severe injury or death to the snowmobile operator, a
bystander, or a person inspecting or repairing the snowmobile.
CAUTION
@
:
A CAUTION indicates special precautions that must be
taken to avoid damage to the snowmobile.
NOTE:
@
A NOTE provides key information to make procedures
easier or clearer.
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ESU00003
CONTENTS
YAMAHA MOTOR
CORPORATION, U.S.A.
SNOWMOBILE LIMITED
WARRANTY
.......................................1-1
YAMAHA EXTENDED SERVICE
(Y.E.S.)
...............................................1-4
LOCATION OF THE
IMPORTANT LABELS
SAFETY INFORMATION
DESCRIPTION
CONTROL FUNCTIONS
.......................2-1
...................3-1
...................................4-1
....................5-1
Main switch......................................5-1
Starter lever (choke) ........................5-2
Throttle lever....................................5-2
Engine overheating prevention
system .............................................5-2
Throttle override system
(T.O.R.S.) ........................................5-3
Speedometer unit ............................5-4
High beam indicator light .................5-4
Fuel meter and grip/thumb
warmer level indicator......................5-5
Fuel level warning indicator .............5-6
Oil level warning indicator................5-6
Low coolant temperature
indicator light ...................................5-6
Coolant temperature warning
indicator ...........................................5-7
Self-diagnostic system.....................5-7
Engine stop switch...........................5-8
Brake lever ......................................5-8
Parking brake lever..........................5-9
Shift lever.........................................5-9
Headlight beam switch ..................5-10
Auxiliary DC jack ...........................5-10
Shroud latches...............................5-11
Drive guard....................................5-11
V-belt holders ................................5-11
Carburetor coolant shut-off
lever...............................................5-12
Rear suspension damping force
remote adjustment dial ..................5-12
Storage compartment....................5-12
Rear carrier ...................................5-13
PRE-OPERATION CHECKS
..............6-1
Fuel .................................................6-1
Engine oil.........................................6-2
Engine oil level ................................6-3
Coolant ............................................6-4
Throttle lever ...................................6-5
Throttle override system
(T.O.R.S.) ........................................6-5
Brake ...............................................6-6
Brake fluid leakage..........................6-7
V-belt ...............................................6-7
Drive guard......................................6-7
Drive track .......................................6-8
51-mm (2.0-in) high-profile
pattern drive track............................6-8
Slide runners ...................................6-9
Skis and ski runners ........................6-9
Steering system.............................6-10
Lights.............................................6-10
Air filter ..........................................6-10
Fittings and fasteners ....................6-11
Tool kit and recommended
equipment......................................6-11
OPERATION
......................................7-1
Starting the engine ..........................7-1
Break-in ...........................................7-2
Riding your snowmobile ..................7-3
Getting to know your snowmobile ...7-3
Learning to ride your snowmobile ...7-3
To start out and accelerate..............7-3
Braking ............................................7-3
Turning ............................................7-4
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Riding uphill .....................................7-4
Riding downhill ................................7-5
Traversing a slope ...........................7-5
Ice or icy surface .............................7-5
Hard-packed snow...........................7-6
Operation on surfaces other than
snow or ice ......................................7-6
Maximizing drive track life ...............7-7
Strap ................................................7-8
Driving .............................................7-9
Stopping the engine.......................7-10
Transporting ..................................7-11
PERIODIC MAINTENANCE ...............8-1
Periodic maintenance chart for the
emission control system ..................8-1
General maintenance and
lubrication chart ...............................8-2
Tool kit .............................................8-5
Checking the spark plugs ................8-5
Adjusting the engine idling speed ....8-7
Adjusting the throttle cable ..............8-7
Adjusting the carburetors.................8-7
Adjusting the high-altitude
settings ............................................8-8
Adjusting the valve clearance..........8-8
Changing the engine oil...................8-9
Cooling system ..............................8-12
Replacing the V-belt ......................8-14
Checking the drive chain
housing oil level and the drive
chain tension .................................8-16
Checking the brake pads...............8-18
Checking the parking brake
pads...............................................8-18
Checking the brake fluid level........8-19
Changing the brake fluid................8-19
Suspension....................................8-19
Adjusting the drive track ................8-31
Aligning the skis.............................8-33
Adjusting the handlebar.................8-33
Lubrication .....................................8-35
Replacing a headlight bulb ............8-36
Adjusting the headlight beam ........8-36
Battery ...........................................8-37
Replacing a fuse............................8-37
TROUBLESHOOTING .......................9-1
STORAGE ........................................10-1
SPECIFICATIONS............................11-1
Dimensions....................................11-1
Engine ...........................................11-1
Chassis..........................................11-2
Electric...........................................11-4
WIRING DIAGRAM ..........................12-1
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ESU05070
1-
YAMAHA MOTOR CORPORATION, U.S.A.
SNOWMOBILE LIMITED WARRANTY
CW-07E
Yamaha Motor Corporation, U.S.A. hereby warrants that
new Yamaha snowmobiles purchased from an authorized Yamaha snowmobile dealer in the continental United
States will be free from defects in material and workmanship for the period of time stated herein, subject to certain
stated limitations.
WARRANTY PERIOD:
1. All Yamaha snowmobiles shall be warranted for a
term of one (1) year from the date of purchase, plus
a special early-season extension (if applicable).
2. All Yamaha snowmobile clutch components are warranted against abnormal wear for one (1) year from
the date of purchase, plus a special early-season
extension (if applicable).
DURING THE PERIOD OF WARRANTY any au-
thorized Yamaha snowmobile dealer will, free of charge,
repair or replace, at Yamaha’s option, any part adjudged
defective by Yamaha due to faulty workmanship or
material from the factory. Parts used in warranty repairs
will be warranted for the balance of the snowmobile’s
warranty period. All parts replaced under warranty become the property of Yamaha Motor Corporation, U.S.A.
GENERAL EXCLUSIONS from this warranty shall
include any failures to the machine caused by:
1. Competition, racing, or non-Yamaha authorized rental
use.
2. Operation on surfaces other than snow or ice.
3. Installation of parts or accessories that are not qualitatively equivalent to genuine Yamaha parts.
4. Abnormal strain, neglect, or abuse.
5. Lack of proper maintenance.
6. Accident or collision damage.
7. Modification to original parts.
2. Give notice to an authorized Yamaha snowmobile
dealer of any and all apparent defects within ten (10)
days after discovery, and make the machine available at that time for inspection and repairs at such
dealer’s place of business. You may locate your
nearest authorized Yamaha dealer through your
local telephone directory.
WARRANTY TRANSFER: To transfer any remain-
ing warranty from the original purchaser to any subsequent purchaser, it is imperative that the machine be
inspected and registered for warranty by an authorized
Yamaha snowmobile dealer. In order for this warranty
to remain in effect, this inspection and registration must
take place within ten (10) days after ownership transfer.
An inspection and registration fee will be charged for this
service.
EMISSION CONTROL SYSTEM WARRANTY
Yamaha Motor Corporation, USA also warrants to the
ultimate purchaser and each subsequent purchaser of
each 2006 and later model Yamaha snowmobile covered by this warranty that the vehicle is designed, built,
and equipped so as to conform at the time of sale with
all U.S. emissions standards applicable at the time of
manufacture and that it is free from defects in materials
and workmanship which would cause it not to meet
these standards within the period listed immediately
below. Failures other than those resulting from defects
in material or workmanship which arise solely as a
result of owner abuse and/or lack of proper maintenance are not covered by this warranty.
All Models
Thirty (30) months from the original purchase date
SPECIFIC EXCLUSIONS
include parts replaced due to normal wear or routine
maintenance including oil, spark plugs, clutch drive belts,
slide runners, and track.
THE CUSTOMER’S RESPONSIBILITY
warranty shall be to:
1. Operate and maintain the snowmobile as specified in
the appropriate Owner’s Manual.
from this warranty shall
under this
1-1
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CW-08E
YAMAHA MOTOR CORPORATION, U.S.A.
MAKES NO OTHER WARRANTY OF ANY KIND,
EXPRESSED OR IMPLIED. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH
EXCEED THE OBLIGATIONS AND TIME LIMITS STATED IN THIS WARRANTY ARE HEREBY
DISCLAIMED BY YAMAHA MOTOR CORPORATION, U.S.A. AND EXCLUDED FROM THIS
WARRANTY.
SOME STATES DO NOT ALLOW LIMITATIONS
ON HOW LONG AN IMPLIED WARRANTY
LASTS, SO THE ABOVE LIMITATION MAY
NOT APPLY TO YOU. ALSO EXCLUDED FROM
THIS WARRANTY ARE ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES INCLUDING
LOSS OF USE. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE EXCLUSION MAY NOT
APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE
OTHER RIGHTS WHICH VARY FROM STATE
TO STATE.
WARRANTY QUESTIONS AND
ANSWERS
Q. What costs are my responsibility during the warranty
period?
A. The customer’s responsibility includes all costs of
normal maintenance services, non-warranty repairs,
accident and collision damages, as well as oil, spark
plugs, clutch drive belts, and slide runners.
Q. What are some examples of “abnormal” strain, ne-
glect, or abuse?
A. These terms are general and overlap each other in
areas. Specific examples include: Running the machine out of oil, hitting an object submerged under
snow, operation on surfaces other than snow or ice,
operating the machine with a broken or damaged
part which causes another part to fail, and so on. If
you have any specific questions on operation or
maintenance, please contact your dealer for advice.
Q. May I perform any or all of the recommended main-
tenance shown in the Owner’s Manual instead of
having the dealer do them?
A. Yes, if you are a qualified snowmobile mechanic and
follow the procedures specified in the Owner’s and
Service Manual. We do recommend, however, that
items requiring special tools or equipment be done by
a Yamaha snowmobile dealer.
SPECIAL EARLY-SEASON WARRANTY EXTENSION
A special warranty extension is available for all new
Yamaha snowmobiles purchased between June 1 and
December 1.
All new Yamaha snowmobiles purchased between June
1 and December 1 will have the warranty extended to
November 30 of the following year.
YAMAHA MOTOR CORPORATION, U.S.A.
Post Office Box 6555
Cypress, California 90630
Q. Under what conditions is the clutch not covered by
warranty?
A. Clutches as well as clutch components wear with
use. Normal wear is not covered under warranty such
service is the customer’s responsibility. Abnormal
wear is, however, covered for one (1) year from the
date of purchase. Your Yamaha snowmobile dealer
possesses criteria as to what constitutes abnormal
wear.
Q. Will the warranty be void or canceled if I do not
operate or maintain my new Yamaha exactly as
specified in the Owner’s Manual?
A. No. The warranty on a new Yamaha cannot be
“voided” or “canceled.” However, if a particular failure
is caused by operation or maintenance other than as
shown in the Owner’s Manual, that failure may not be
covered under warranty.
1-2
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CW-09E
Q. What responsibility does my dealer have under this
warranty?
A. Each Yamaha snowmobile dealer is expected to:
1. Completely set up every new machine before sale.
2. Explain the operation, maintenance, and warranty
requirements to your satisfaction at the time of sale,
and upon your request at any later date.
3. In addition, each Yamaha snowmobile dealer is held
responsible for his setup, service and warranty repair
work.
Q. Whom should I contact if I have further questions
about this warranty?
A. Your Yamaha snowmobile dealer has the informa-
tion and experience necessary to answer almost any
questions about this warranty. If the dealer is not able
to do so, he is expected to contact Yamaha Motor
Corporation, U.S.A., for clarification or assistance.
CUSTOMER SERVICE
When contacting Yamaha Motor Corporation, U.S.A. be sure to include the model,
serial number, names, dates, and receipts.
CHANGE OF ADDRESS
The federal government requires each manufacturer of a
motor vehicle to maintain a complete, up-to-date list of all
first purchasers against the possibility of a safety-related
defect and recall. This list is compiled from the purchase
registrations sent to Yamaha Motor Corporation, U.S.A.
by the selling dealer at the time of your purchase.
If you should move after you have purchased your new
snowmobile, please advise us of your new address by
sending a postcard listing your snowmobile model name,
engine serial number, dealer number (or dealer’s name)
as it is shown on your warranty registration identification,
your name and new mailing address. Mail to:
If your machine requires warranty service, you must take
it to any authorized Yamaha snowmobile dealer within
the continental United States. Be sure to bring your
warranty identification card or other valid proof of the
original date of purchase. If a question or problem arises
regarding warranty, first contact the owner of the dealership. Since all warranty matters are handled at the dealer
level, this person is in the best position to help you. If you
are still not satisfied and require additional assistance,
please write:
YAMAHA MOTOR CORPORATION, U.S.A.
CUSTOMER RELATIONS
DEPARTMENT
P.O. Box 6555
Cypress, California 90630
YAMAHA MOTOR CORPORATION, U.S.A.
WARRANTY DEPARTMENT
P.O. Box 6555
Cypress, California 90630
This will ensure that Yamaha Motor Corporation, U.S.A.
has an up-to-date registration record in accordance with
federal law.
1-3
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ESU04280
YAMAHA EXTENDED SERVICE (Y.E.S.)
CW-06E
1-4
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ESU04050
2-
LOCATION OF THE IMPORTANT
Please read the following labels carefully before operating this snowmobile.
NOTE:
@
Maintain or replace safety and instruction labels, as necessary.
@
1
RS90N/RS90M/RS90MS
LABELS
1
RS90R/RS90NR/RS90GT/RSG90/RSG90GT
2
8EK-77761-E0
8FB-77761-E0
2-1
8ES-14427-00
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34
CAUTION ATTENTION
Severe engine damage
can result from oil loss if
crankcase breather hoses
are not installed correctly.
Inspect hoses and clamps
for correct installation
after battery service or
air box removal.
See Service Manual.
Des dommages graves risquent de survenir par
suite de fuites d’huile résultant d’un mauvais
branchement des tuyaux de reniflard du carter.
Après l’entretien de la batterie ou après la
dépose de l’épurateur d’air, assurezvous que les brides et les tuyaux
sont installès correctement.
Consultez le manuel
d’entretien.
8ES-14488-00
55RS90GT/RSG90GT
6 RS90M/RS90MS
7 RS90M/RS90MS
4AA-22259-70
4AA-22259-60
8ED-2191H-E0
2-2
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8 RS90M/RS90MS/RSG90/RSG90GT
9 RS90MS
Do not use the carrier
to lift the snowmobile.
Ne pas soulever la motoneige
en tirant sur le porte-bagages.
8FS-24875-E0
2-3
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NOTE:
@
The following suspension adjustment charts are included
with the Owner’s Manual.
@
RS90N/RS90NR/RS90M/RS90MS
RS90R/RS90GT/RSG90/RSG90GT
2-4
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ESU00008
When you ride your snowmobile, you must know and use
the following for your safety. Severe injury or death may
result if you ignore any of the following.
Before operating
1. Read the Owner’s Manual and all labels before oper-
ating this snowmobile. Become familiar with all of the
operating controls and their function. Consult a
Yamaha dealer about any control or function you do
not understand.
2. This snowmobile was not manufactured for use on
public streets, roads, or highways. Such use is prohibited by law, and you could collide with another
vehicle.
3. This snowmobile is designed to carry the OPERATOR ONLY.
Passengers are prohibited. Carrying a passenger
can cause loss of control.
3-
SAFETY INFORMATION
4. Do not operate the snowmobile after drinking alcohol
or taking drugs. Your ability to operate the snowmobile is reduced by the influence of alcohol or drugs.
5. For safety and proper care of the snowmobile, always
perform the pre-operation checks on pages 6-1–6-11
before starting the engine. Check the throttle, brake,
and steering for proper operation every time before
starting the engine. Make sure that the throttle lever
moves freely and it returns to the home position when
it is released.
6. Apply the parking brake before starting the engine.
Never drive the snowmobile with the parking brake
applied. This may overheat the brake disc and reduce
braking ability.
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7. Do not allow anyone to stand behind the snowmobile
when starting, inspecting, or adjusting the snowmobile. A broken track, track fittings, or debris thrown by
the track could be dangerous to the operator or
bystanders.
8. Handle fuel with care; it is HIGHLY FLAMMABLE.
●
●
●
●
●
9. If you swallow some gasoline, inhale a lot of gasoline
vapor, or get some gasoline into your eyes, see your
doctor immediately. If any gasoline spills on your skin
or clothing, immediately wash your skin with soap
and water, and change your clothes.
Never add fuel when the engine is running or hot.
Allow the engine to cool for several minutes after
running.
Use an approved fuel container.
Fill the fuel tank outdoors with extreme care.
Never remove the fuel cap indoors. Never fill the
fuel tank indoors.
Never refuel while smoking or in the vicinity of an
open flame.
Make sure that the fuel tank cap is closed securely
after refueling. Wipe up any spilled fuel immediately.
10. Wear protective clothing. Wear an approved helmet,
and a face shield or goggles. Also, wear a good quality snowmobile suit, boots, and a pair of gloves or mittens that will permit use of your thumbs and fingers
for operation of the controls.
Operation
1. Do not run the engine indoors, except when starting
the engine to transport the snowmobile in or out of
the building. Open the outside doors; exhaust fumes
are dangerous.
2. Be careful where you ride. There may be obstacles
hidden beneath the snow. Stay on established trails
to minimize your exposure to hazards. Ride slowly
and cautiously when you ride off of established trails.
Hitting a rock or stump, or running into wires could
cause an accident and injury.
3-2
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3. This snowmobile is not designed for use on surfaces
other than snow or ice. Use on dirt, sand, grass,
rocks, or bare pavement may cause loss of control
and may damage the snowmobile.
4. Avoid operating on glare ice, or on snow which has a
lot of dirt or sand mixed in. Operation under such
conditions will damage or result in rapid wear of ski
runners, drive track, slide runners, and drive sprockets.
5. Always ride with other snowmobilers when going on a
ride. You may need help if you run out of fuel, have an
accident, or damage your snowmobile.
6. Many surfaces such as ice and hard-packed snow
require much longer stopping distances. Be alert,
plan ahead and begin decelerating early. The best
braking method on most surfaces is to release the
throttle and apply the brake gently—not suddenly.
Maintenance and storage
1. Do not leave the snowmobile on its left side for an
extended period of time. Fuel may leak out from the
fuel breather hose.
2. Modifications made to the snowmobile not approved
by Yamaha, or the removal of original equipment may
render your snowmobile unsafe for use that may
cause severe personal injury. Modifications may also
make the snowmobile illegal to use.
3. Never store the snowmobile with fuel in the fuel tank
inside a building where ignition sources are present
such as hot water and space heaters, an open flame,
sparks, clothes dryers, and the like. Allow the engine
to cool off before storing the snowmobile in an
enclosed space.
4. Always refer to the “STORAGE” section if the snow-
mobile is to be stored for an extended period.
5. Maintain or replace safety and instruction labels, as
necessary.
3-3
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ESU00012
4-
DESCRIPTION
RS90N/RS90NR
RS90M
RS90MS
RS90R/RS90GT
RSG90/RSG90GT
4-1
E_8gg.book Page 2 Thursday, March 16, 2006 4:23 PM
Windshield
1
Steering handlebar
2
Seat
3
Frame
4
Storage compartment
5
Rear carrier
6
Slide rail suspension
7
Rear suspension damping force
8
remote adjustment dial
(RS90R/RS90GT/RSG90/RSG90GT)
Drive track
9
Skis
0
Headlights
A
Shroud
B
Strap (RS90M/RS90MS)
C
Tail/brake lights
D
Snow flap
E
Brake lever
F
Parking brake lever
G
Grip warmer adjustment switch
H
Headlight beam switch
I
Engine stop switch
J
Thumb warmer adjustment switch
K
Throttle lever
L
Shift lever
M
(RS90R/RS90NR/RS90GT/RSG90/
RSG90GT)
Shroud latch
N
Main switch
O
Auxiliary DC jack
P
(RS90GT/RSG90GT)
Starter lever
Q
Tachometer
R
Low coolant temperature indicator
S
light
High beam indicator light
T
Warning light
U
Self-diagnosis warning indicator
V
Coolant temperature warning
W
indicator
Fuel level warning indicator
X
Oil level warning indicator
Y
Speedometer
Z
Grip warmer indicator
[
Select/reset button
\
Thumb warmer indicator
]
Fuel meter and grip/thumb warmer
_
level indicator
Odometer/tripmeter
a
4-2
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ESU00013
ESU00362
Main switch
The main switch controls the following items.
“OFF”
1
The ignition circuit is switched off.
The key can be removed only in this position.
“ON”
2
The ignition circuit is switched on.
“START”
3
The starting circuit is switched on.
The starter motor starts.
5-
CONTROL FUNCTIONS
CAUTION
@
:
Release the switch immediately after the engine
starts.
@
NOTE:
@
The headlights, meter lights, and taillights come on after
the engine starts.
@
5-1
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ESU00201
Starter lever (choke)
Use the starter lever (choke) when starting and warming
up a cold engine.
Starter lever (choke)
1
When starting a cold engine.
2
Warming up
3
When the engine is warm.
4
NOTE:
@
Refer the “Starting the engine” section for proper operation.
@
ESU00022
Throttle lever
Once the engine is running cleanly, squeezing a the throttle lever 1 will increase the engine speed and cause
engagement of the drive system. Regulate the speed of
the snowmobile by varying the throttle position. Because
the throttle is spring-loaded, the snowmobile will decelerate, and the engine will return to idle when it is released b.
WARNING
@
Check the throttle, brake, and steering for proper
operation before starting the engine.
@
ESU00361
Engine overheating prevention system
This model is equipped with an engine overheating prevention system to prevent overheating when the engine
is idling.
When the engine has been idling for at least 3 minutes
and the coolant temperature has risen above 100 °C
(212 °F), the engine automatically shuts off to prevent
overheating.
NOTE:
The engine can be started after it shuts off.
5-2
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ESU04151
Throttle override system (T.O.R.S.)
If the carburetor or throttle cable should malfunction during operation, the T.O.R.S. will operate when the throttle
lever is released.
The T.O.R.S. is designed to interrupt the ignition and
keep the engine speed between 2,800 and 3,000 r/min if
the carburetor fails to return to idle when the lever is
released.
@
●
If the T.O.R.S. is activated, make sure that the
cause of the malfunction has been corrected and
that the engine can be operated without a problem before restarting the engine.
●
Be sure to use the specified spark plug and spark
A
B
plug cap. Otherwise, the T.O.R.S. will not work
properly.
@
CA-19E
Item
Throttle switch Off On Off
Throttle position
sensor
Engine Run Run
WARNING
Mode
A
Idling/
starting
B C
Running Trouble
Closed Open Open
T.O.R.S.
will operate
Idling/starting
È
Running
É
Tr o u b l e
Ê
Throttle position sensor (throttle valve position)
C
1
Throttle switch
2
Throttle cable
3
On
a
Off
b
Open
c
Closed
d
NOTE:
@
When the T.O.R.S. is activated, the warning light 4 and
self-diagnosis warning indicator 5 will flash and the twodigit code “84” 6 will flash in the tripmeter/odometer display.
@
5-3
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ESU04160
Speedometer unit
The speedometer unit is equipped with the following:
a digital speedometer (which shows riding speed)
●
an odometer (which shows the total distance trav-
●
eled)
a tripmeter (which shows the distance traveled since
●
it was last set to zero)
warning indicators (which show self-diagnosis, cool-
●
ant temperature, fuel level, and oil level warnings)
a fuel meter (which shows the fuel remaining in the
●
fuel tank)
a grip/thumb warmer level indicator (which shows the
●
grip warmer level or the thumb warmer level)
After the engine is started, the tachometer 1 makes one
sweep, and the low coolant temperature indicator
light2, the warning light 3, and all segments of the
meter4 turn on and off once.
The grip warmer level is initially displayed for 5 seconds,
then switches to the fuel meter display.
Odometer and tripmeter modes
Pushing the select/reset button 5 switches the display
between the odometer mode “ODO” and the tripmeter
mode “TRIP”.
To reset the tripmeter, push the select/reset button for at
least one second while the tripmeter is displayed.
NOTE:
@
To switch the speedometer, odometer, and tripmeter displays between kilometers and miles, select the odometer
mode “ODO”, and then push the select/reset button
5
for at least 10 seconds while the snowmobile is stopped.
@
ESU00363
High beam indicator light
The high beam indicator light 1 comes on when the high
beams of the headlights are switched on. (See page 5-10
for headlight beam switch operation.)
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ESU03824
Fuel meter and grip/thumb warmer level indicator
The fuel meter and grip/thumb warmer level indicator
have eight segments 1 which show the amount of fuel
remaining in the fuel tank, the grip warmer level, or the
thumb warmer level.
Fuel meter
As the fuel level decreases in the fuel tank, the segments
disappear until the level goes down to the last segment
“E” (Empty). When this occurs, the fuel level warning
indicator 2 and the warning light 3 come on.
If the fuel level warning indicator and the warning light
come on, fill the fuel tank at the first opportunity.
NOTE:
@
The snowmobile must be stopped on a level surface to
obtain an accurate fuel meter reading, since the reading
changes according to the movement and inclination of
the snowmobile.
@
Grip/thumb warmer level indicator
The grip warmer adjustment switch 1 and the thumb
warmer adjustment switch 2 control the electrically
heated handlebar grips and throttle lever respectively.
To raise the temperature, press the respective switch to
“HI”. To lower the temperature, press the switch to “LO”.
NOTE:
@
The grip warmer indicator 3 comes on and the dis-
●
play switches to the grip warmer level when the grip
warmer adjustment switch is pressed.
The thumb warmer indicator 4 comes on and the
●
display switches to the thumb warmer level when the
thumb warmer adjustment switch is pressed.
The grip/thumb warmer level is displayed for 5 sec-
●
onds after releasing the grip/thumb warmer adjustment switch, then the display switches to the fuel
meter.
The top segment of the grip/thumb warmer level indi-
●
cator flashes once when the grip/thumb warmer
adjustment reaches the maximum level. The bottom
segment of the grip/thumb warmer level indicator
flashes once when the grip/thumb warmer adjustment reaches the minimum level.
When the engine is started, the grip/thumb warmer
●
levels are set to the levels saved when the engine
was stopped.
@
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ESU04260
Fuel level warning indicator
The fuel level warning indicator indicates a malfunctioning sensor, disconnected coupler, broken lead, or short
circuit when detected by the self-diagnosis device of the
snowmobile.
The fuel level warning indicator 1, warning light 2, and
all segments of the fuel meter 3 warn the rider of the
above problems by flashing continuously.
When this occurs, have a Yamaha dealer inspect the
snowmobile as soon as possible.
ESU00377
Oil level warning indicator
The oil level warning indicator 1 and the warning light
come on when the engine oil level is low.
If the oil level warning indicator and the warning light
come on, place the snowmobile on a level surface and
allow it to idle for one minute.
If the oil level warning indicator and the warning light go
off, the engine oil level is sufficient, however it is getting
low. Add engine oil as soon as possible.
If the oil level warning indicator and the warning light do
not go off, check the engine oil level in the oil tank (see
page 6-3), and add engine oil if necessary.
2
ESU04171
Low coolant temperature indicator light
The low coolant temperature indicator light 1 comes on
when the coolant temperature is low and informs the
rider that the snowmobile must be warmed up. After the
engine is started, warm it up until the indicator light goes
off.
The snowmobile can be operated normally after the indicator light goes off.
NOTE:
@
Operate the snowmobile at low speeds when the low
coolant temperature indicator light is on. If the engine
speed is too high, the warning light 2 and self-diagnosis
warning indicator 3 will flash and the two-digit code
“86”4 will flash slowly in the tripmeter/odometer display.
When this occurs, the engine control system prevents
the engine speed from rising.
@
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E_8gg.book Page 7 Thursday, March 16, 2006 4:23 PM
ESU04180
Coolant temperature warning indicator
If the engine overheats, the coolant temperature warning
indicator 1 and the warning light 2 come on. When this
occurs, stop the engine immediately and allow the
engine to cool down, and then check the coolant level in
the coolant reservoir. (See page 6-4.)
CAUTION
@
:
Do not operate the engine if it overheats.
@
ESU04254
Self-diagnostic system
This model is equipped with a self-diagnostic system for
various electrical circuits.
If any of those circuits are defective, the warning light
and the self-diagnosis warning indicator 2 will flash, and
then an error code (e.g., 16 and 81) 3 will flash slowly in
the tripmeter/odometer display.
WARNING
@
●
If the self-diagnosis warning indicator and warning light flash continuously, and an error code is
displayed during operation, there may be some
problem with the electrical circuit, lead couplers,
etc.
●
Stop the engine and allow it to cool off. Then,
check that the wire harness couplers in the
engine compartment are connected properly.
●
If the self-diagnosis warning indicator, warning
light, and an error code flash after the engine has
been restarted, note the error code, and then
have a Yamaha dealer inspect the snowmobile as
soon as possible.
@
1
5-7
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ESU00031
Engine stop switch
The engine stop switch 1 is used to stop the engine in
an emergency. Simply push 2 the stop switch to stop the
engine. To start the engine, pull 3 the stop switch and
proceed with starting the engine. (See page 7-1 for more
details.)
During the first few rides, practice using the stop switch
so that you can react quickly in an emergency.
ESU02410
Brake lever
The snowmobile is stopped by braking the entire drive
system.
Squeeze the brake lever towards the handlebar grip to
stop the snowmobile.
Brake lever
1
Brake lever end
2
Handlebar end
3
NOTE:
@
When the brake lever is operated, the brake light will illuminate.
@
CAUTION
@
:
Make sure that the brake lever end does not project
out over the handlebar end. This will help prevent
brake lever damage when the snowmobile is placed
on its side for service.
@
For RS90N/RS90NR/RS90GT/RSG90GT
The brake lever is equipped with a position adjuster.
To adjust the brake lever position:
1. Loosen the locknut 1.
2. While lightly pushing the brake lever in direction a,
finger tighten the adjusting bolt 2 to set the brake
lever to the desired position.
3. Tighten the locknut securely after adjusting the brake
lever.
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A
ESU00035
Parking brake lever
When parking the snowmobile or starting the engine,
apply the parking brake by moving the brake lever 1 to
the left.
To release the parking brake, move the parking brake
lever 1 to the right.
To apply the parking brake
B
È
To release the parking brake
É
WARNING
@
●
Always set the parking brake before attempting to
start the engine.
●
Never run the snowmobile with the parking brake
applied. This may overheat the brake disc and
reduce braking ability.
@
ESU03411
Shift lever
For RS90R/RS90NR/RS90GT/RSG90/RSG90GT
The shift lever is used to put the snowmobile into forward
or reverse. After coming to a complete stop, pull the shift
lever out, slide it to “FWD” or to “REV” until it stops, and
then release it.
Shift lever
1
Pull out
2
Slide to “FWD” (Forward)
3
Slide to “REV” (Reverse)
4
Release
5
CAUTION
@
:
Do not shift from “FWD” to “REV” or from “REV” to
“FWD” while the snowmobile is moving. Otherwise,
the drive system could be damaged.
@
5-9
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ESU00039
Headlight beam switch
Push the headlight beam switch to change the headlight
beam to high or low.
Headlight beam switch
1
Push
2
High beam
3
Low beam
4
ESU04301
Auxiliary DC jack
For RS90GT/RSG90GT
The auxiliary DC jack is located in the front panel and
can be used for accessories.
NOTE:
@
The auxiliary DC jack cannot be used if the engine is not
running.
@
1. Start the engine.
2. Open the auxiliary DC jack cap 1, and then insert
the accessory power plug into the jack 2.
NOTE:
@
After using the auxiliary DC jack, be sure to remove the
accessory power plug from the jack and close the auxiliary DC jack cap.
@
CAUTION
@
●
Do not use accessories requiring more than the
:
maximum rated capacity for the auxiliary DC jack.
This may overload the circuit and cause the fuse
to blow. (See pages 8-37–8-39 for the specified
amperage.)
●
Do not use an automotive cigarette lighter or
other accessory with a plug that gets hot
because the jack can be damaged.
@
Maximum rated capacity:
DC 12 V, 2.5 A (30 W)
5-10
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