Yamaha MOUNTAIN MAX 700 User Manual

OWNER’S MANUAL

SNOWMOBILE

LIT-12628-02-26

MM700H

VT700H

8DM-28199-10

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.

ESU00001

2-

INTRODUCTION

Congratulations! Your choice of a Yamaha snowmobile
assures you of the highest quality and dependability.
Your Yamaha snowmobile is manufactured by a company
well-known for excellence in the field of snowmobiles.
The most advanced production equipment and technol­ogy have made Yamaha one of the best snowmobile
manufacturers. We are confident that this snowmobile
will meet the greatest expectations of our customers.
This manual is designed to acquaint you with the opera­tion of this snowmobile and minor maintenance required
for satisfactory service.
Should major repairs ever be required, you are advised
to ask a Yamaha dealer to inspect and repair the snow­mobile whenever it is necessary; they have the tech­niques, tools, and parts to ensure your satisfaction. We
hope that the information within this manual will help you
enjoy many hours of pleasure with your Yamaha snow­mobile.

MM700H

VT700H

OWNER’S MANUAL

© 2002 by Yamaha Motor Corporation, U.S.A.

1st Edition, March 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-12628-02-26

WARNING

@

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.

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.

ESU00003

CONTENTS

YAMAHA MOTOR CORPORATION,
U.S.A. SNOWMOBILE LIMITED
WARRANTY

YAMAHA EXTENDED SERVICE
(Y.E.S.)

LOCATION OF THE
IMPORTANT LABELS

SAFETY INFORMATION

DESCRIPTION

CONTROL FUNCTIONS

Main switch......................................5-1

Starter lever (choke) ........................5-2

Throttle lever....................................5-2

Throttle override system

(T.O.R.S.) ........................................5-2

Oil level warning light.......................5-3

Coolant temperature warning light...5-4

Engine stop switch...........................5-6

Brake lever ......................................5-6

Parking brake lever..........................5-7

Shift lever.........................................5-7

Headlight beam switch ....................5-8

Grip warmer control knob ................5-8

Thumb warmer control knob............5-8

Passenger grip warmer switch ........5-9

Tripmeter reset knob .......................5-9

Shroud latches.................................5-9

Drive guard ....................................5-10

V-belt holders ................................5-10

Spark plug holders.........................5-10

Carburetor heating lever................5-10

Backrest.........................................5-11

Storage compartment ....................5-11

.......................................1-1

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

.......................2-1

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

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

....................5-1

PRE-OPERATION CHECKS

Fuel .................................................6-1

Engine oil.........................................6-2

Coolant ............................................6-2

Throttle lever ...................................6-3

Recoil starter ...................................6-3

Throttle override system

(T.O.R.S.) ........................................6-3

Brake ...............................................6-4

Brake fluid leakage..........................6-5

V-belt ...............................................6-5

Drive guard......................................6-5

Drive track .......................................6-6

51-mm (2.0-in) high-profile pattern

drive track........................................6-6

Slide runners ...................................6-6

Skis and ski runners ........................6-7

Steering system...............................6-7

Lights...............................................6-7

Battery .............................................6-8

Air filter ............................................6-8

Fittings and fasteners ......................6-9

Tool kit and recommended

equipment........................................6-9

OPERATION

Starting the engine ..........................7-1

Emergency engine starting..............7-2

Break-in ...........................................7-4

Riding your snowmobile ..................7-5

Getting to know your snowmobile ...7-5
Learning to ride your snowmobile ...7-5

To start out and accelerate..............7-5

Braking ............................................7-5

Turning ............................................7-6

Riding uphill.....................................7-6

Riding downhill ................................7-7

Traversing a slope...........................7-7

Ice or icy surface .............................7-7

Hard-packed snow ..........................7-8

Operation on surfaces other than

snow or ice ......................................7-8

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

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

Maximizing drive track life ...............7-9

Strap ..............................................7-10

Driving ...........................................7-11

Stopping the engine.......................7-12

Transporting ..................................7-13

PERIODIC MAINTENANCE ...............8-1

Periodic maintenance chart .............8-1

Tool kit .............................................8-4

Spark plug inspection ......................8-4

Engine idle speed adjustment .........8-5

Throttle cable adjustment ................8-6

Oil pump cable adjustment ..............8-6

Carburetor adjustment.....................8-7

High altitude adjustments ................8-9

Cooling system ..............................8-10

V-belt replacement ........................8-12

Checking the oil level of the drive

chain housing ................................8-14

Checking the brake pads...............8-16

Checking the parking brake

pads...............................................8-16

Checking the brake fluid level........8-17

Brake fluid replacement.................8-17

Suspension....................................8-18

Drive track adjustment...................8-21

Ski alignment .................................8-23

Handlebar adjustment ...................8-24

Lubrication .....................................8-26

Headlight bulb replacement...........8-27

Headlight beam adjustment...........8-27

Battery ...........................................8-28

Fuse replacement..........................8-29

TROUBLESHOOTING .......................9-1

STORAGE ........................................10-1

SPECIFICATIONS............................11-1

Dimensions....................................11-1

Engine ...........................................11-1

Chassis..........................................11-2

Electric...........................................11-3

WIRING DIAGRAM ..........................12-1

ESU00004

CW-01E

1-

YAMAHA MOTOR CORPORATION, U.S.A.

SNOWMOBILE LIMITED WARRANTY

1-1

CW-02E

1-2

CW-03E

1-3

ESU00005

CW-10E

YAMAHA EXTENDED SERVICE (Y.E.S.)

1-4

1

MM700

ESU00007

2-

LOCATION OF THE

IMPORTANT LABELS

Please read the following labels carefully before operat­ing this snowmobile.

NOTE:

@

Maintain or replace safety and instruction labels, as nec­essary.

@

2

1

VT700

2-1

3 MM700

4 MM700

5 MM700

2-2

ESU00325

3-

SAFETY INFORMATION

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 oper­ating 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. MM700 is designed to carry the OPERATOR ONLY.
Passengers are prohibited. Carrying a passenger
can cause loss of control.

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 6-1–6-9
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.

3-1

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.

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.

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.

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

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

MM700

VT700

ESU00012

4-

DESCRIPTION

Windshield

1

Steering handlebar

2

Seat

3

Passenger grip warmer switch (VT700)

4

Frame

5

Slide rail suspension

6

Drive track

7

Skis

8

4-1

VT700

Headlight

9

Shroud

0

Storage compartment

A

Tail/brake light

B

Snow flap

C

Side mirror (VT700)

D

Brake lever

E

Headlight beam switch

F

Parking brake lever

G

Strap (MM700)

H

Engine stop switch

I

Throttle lever

J

Shift lever (VT700)

K

Starter handle

L

Shroud latch

M

Main switch

N

Starter lever

O

Thumb warmer control knob

P

Grip warmer control knob

Q

Tr i p m e t e r

R

Odometer

S

Speedometer

T

Tachometer

U

Fuel meter

V

Coolant temperature warning light

W

Oil level warning light

X

High beam indicator light

Y

Tripmeter reset knob

Z

4-2

ESU00013

5-

CONTROL FUNCTIONS

ESU00256

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”

A

2

The ignition circuit is switched on.
The engine can be started.

NOTE:

@

The headlight, meter lights, and taillight will come on
after the engine starts.

@

B

For VT700

“START”

3

The starting circuit is switched on.
The starter motor starts.

CAUTION

@

:

Release the switch immediately after the engine
starts.

@

MM700

È

VT700

É

5-1

ESU00020

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.

@

ESU00023

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 revolution speed between 2,800 and
3,000 r/min if the carburetor fails to return to idle when
the lever is released.

5-2

WARNING

@

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

plug cap. Otherwise, the T.O.R.S. will not work
properly.

@

CA-01E

Mode

Switch

A

starting

Idle

or

B C

Run Trouble

Throttle switch Off On Off

B

C

Carburetor switch On Off Off

Engine Run Run

Idle or starting

È

Run

É

Tr o u b l e

Ê

Carburetor switch

1

Throttle switch

2

Throttle cable

3

Throttle valve

4

On

a

Off

b

T.O.R.S.
will operate

ESU00026

Oil level warning light

If the oil level falls below the lower level, this light comes
on.
If the light comes on, add engine oil to the oil tank at the
first opportunity.

5-3

ESU00278

Coolant temperature warning light

This snowmobile is equipped with a self-diagnosis device
which is able to detect a malfunctioning sensor, discon­nected coupler, broken lead, abnormally high coolant
temperature, etc.
The coolant temperature warning light warns the rider of
the above problems by flashing or staying on. If neces­sary, ask a Yamaha dealer for further details. (See page
5-5 for warning light flash patterns.)
After the engine starts, this light flashes three times to
check the bulb, and then goes off if there are no prob­lems. (See page 5-5 for warning light flash pattern num­ber 0.)
If it does not flash, have a Yamaha dealer inspect the
electrical circuit.

WARNING

@

●

If the coolant temperature warning light flashes
continually or stays on during operation, there
may be some problem with the electrical circuit,
lead couplers, or engine cooling system. (See
page 5-5 for warning light flash pattern numbers
1–7.)

●

Stop the engine and allow it to cool off. Then,
check that the wire harness couplers are con­nected properly in the engine compartment and
that the coolant level of the coolant reservoir is
within the specified range. (See page 6-2.)

●

If the coolant temperature warning light remains
on after the engine has been started or if it
flashes, note the flash pattern, and then have a
Yamaha dealer inspect the snowmobile as soon
as possible.

@

5-4

No. Coolant temperature warning light flash patterns

Light bulb check:
Light flashes three times, then
goes off.

Engine overheat warning:
Light flashes continuously in this
pattern.

0.25 s

0.25 s

0.5 s

0.5 s
3 s

· · ·

0

1

· · ·

2

3

4

5

6

7

0.75 s

0.25 s

0.75 s

2.5 s

0.75 s

0.25 s

0.75 s

0.25 s

0.75 s

0.25 s

0.75 s

0.25 s

4 s

· · ·

· · ·

3.5 s

· · ·

4.5 s

· · ·

5.5 s

6.5 s

Light flashes continuously in this
pattern.

Light flashes continuously in this
pattern.

Light flashes continuously in this
pattern.

Light flashes continuously in this
pattern.

Light flashes continuously in this
pattern.

Light flashes continuously in this

· · ·

pattern.

: Warning light is on : Warning light is off s: Second

5-5

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.

ESU00241

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 VT700

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.

5-6

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.

@

ESU00321

Shift lever

For VT700

The shift lever is used to put the snowmobile into forward
or reverse. After coming to a complete stop, push the
shift lever down and move it to the desired direction.

Shift lever

1

Push down

2

Move to “FWD”

3

Move to “REV”

4

CA-02E

Snowmobile movement

“FWD” Forward
“REV” Reverse

CAUTION

@

:

Do not shift from “FWD” to “REV” or “REV” to
“FWD” while the snowmobile is moving. Otherwise,
the drive system could be damaged.

@

5-7

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

ESU00279

Grip warmer control knob

The grip warmer control knob controls the electrically
heated handlebar grips.

Grip warmer control knob

1

“OFF”

2

“ON”

3

CA-03E

Knob position Grip warmer temperature

Turn clockwise

a

Turn counterclockwise

ESU00280

b

Higher

Lower

Thumb warmer control knob

The thumb warmer control knob controls the electrically
heated throttle lever.

Thumb warmer control knob

1

“OFF”

2

“ON”

3

CA-06E

Knob position

Turn clockwise

a

Turn counterclockwise

5-8

Thumb warmer temperature

Higher

Lower

b

ESU00044

Passenger grip warmer switch

For VT700

The passenger grip warmer switch controls the electri­cally heated passenger grips.

Passenger grip warmer switch

1

“OFF”

2

“HI” High

3

“LO” Low

4

ESU00046

Tripmeter reset knob

Use the tripmeter reset knob to reset the tripmeter.

Tripmeter reset knob

1

Turn counterclockwise

2

ESU00048

Shroud latches

To open the shroud, unhook the shroud latches, and then
slowly raise the shroud forward until it stops. When clos­ing the shroud, slowly lower it to its home position, and
then hook the shroud latches.

Shroud latch

1

Shroud

2

CAUTION

@

:

Make sure that all cables and wires are in place when
closing the shroud.

@

WARNING

@

●

Do not drive the snowmobile with the shroud
open, unlatched, or removed.

●

Keep your body and clothing away from rotating
parts when servicing with the shroud open.

●

Do not touch the hot muffler and engine during or
immediately after operation.

@

5-9

ESU00052

Drive guard

The drive guard is designed to cover the V-belt clutch
and V-belt in case parts break or come loose.

WARNING

●

Make sure that the drive guard is tightened
securely before operating the snowmobile.

●

Never run the engine with the V-belt or drive
guard removed.

@

ESU00053

V-belt holders

Keep a spare V-belt for emergency use by placing it into
the V-belt holders provided.

CAUTION

@

:

Make sure that the V-belt is installed securely in the
holders.

@

ESU00056

Spark plug holders

Keep spare spark plugs for emergency use by placing
them into the spark plug holders provided.

ESU00057

Carburetor heating lever

The carburetor heating lever controls the flow of coolant
through each carburetor body.
Make sure that the lever is in the “ON” position to heat
the carburetors while the ambient temperature is below
0 °C (32 °F).

Carburetor heating lever

1

“ON”

2

“OFF”

3

CAUTION

@

When operating the snowmobile above 0 °C (32 °F),
move the carburetor heating lever to the “OFF” posi­tion, since the carburetors do not need to be heated.

@

:

5-10

ESU00067

Backrest

For VT700

The backrest is adjustable.
Pull the backrest adjusting lever 1 upward to adjust the
backrest position.

Turn the backrest adjusting knob 2 right or left to further
adjust the backrest.

WARNING

@

Do not sit on the backrest.

@

When riding without a passenger, the backrest can be
adjusted for the rider as shown in the illustration.

To adjust the passenger grip position, remove the pas­senger grip adjusting knobs 3 on both sides of the seat,
and change the position of the passenger grip to any one
of the three positions shown.

A B

WARNING

@

Make sure that the passenger grip adjusting knobs
are tightened securely after adjusting the passenger
grip position.

@

ESU00242

Storage compartment

Open the storage compartment to store the service
tools, spare parts, or other small items.

MM700

È

VT700

É

5-11

ESU00072

R+M

2

6-

PRE-OPERATION CHECKS

NOTE:

@

Pre-operation checks should be made each time the
snowmobile is used.

@

WARNING

@

The engine and muffler will be very hot after the
engine has been run.
Avoid touching the engine and muffler while they are
still hot with any part of your body or clothing during
inspection or repair.

@

ESU00075

Fuel

Make sure that there is sufficient fuel in the fuel tank.

Recommended fuel:

Unleaded gasoline

Pump octane ; 88 or higher

Fuel tank capacity:

44.3 L (9.7 Imp gal, 11.7 US gal)

WARNING

@

●

Fuel is HIGHLY FLAMMABLE and poisonous.
Check the “SAFETY INFORMATION” section
carefully before refueling. (See page 3-2.)

●

Do not fill the fuel tank above the bottom of the
filler tube 1. Fuel could overflow if the snowmo­bile is tilted on its side or if the ambient tempera­ture rises, causing the fuel to warm up and
expand.

●

Make sure that the fuel tank cap is closed
securely after refueling. Leaking fuel can catch
fire.

@

Fuel level

2

CAUTION

@

●

Oxygenated fuels (gasohol) containing a maxi-

:

mum 5% of ethanol can be used, although richer
jetting may be required to prevent engine dam-

6-1

age. Consult a Yamaha dealer. Gasohol contain­ing methanol is not recommended.
Make sure that snow or ice does not enter the fuel

●

tank when refueling.
Do not use alcohol deicers or water absorbing

●

additives with oxygenated fuel.
The fuel tank should be filled with straight gaso-

●

line as specified.

@

ESU00083

Engine oil

Make sure that there is sufficient oil in the oil tank.

Oil tank capacity: 3.0 L (2.6 Imp qt, 3.2 US qt)
Recommended oil: YAMALUBE 2-cycle oil

ESU00085

Coolant

Make sure that the coolant level is between “FULL”
and “LOW” 2 when the engine is cold.
If the coolant level is at or below “LOW”, add soft water
until it reaches the “FULL” level. (See pages 8-10–8-11
for more details.)

1

Coolant reservoir capacity:

“LOW” to “FULL” level:

0.13 L (0.11 Imp qt, 0.14 US qt)

WARNING

@

Do not remove the coolant filler cap when the engine
is hot.

@

CAUTION

@

Hard water or salt water is harmful to the engine

●

:

parts. You may use boiled water or distilled water,
if soft water is not available.
Tap water can be used temporarily in an emer-

●

gency.

@

6-2

ESU00087

Throttle lever

Check the throttle lever operation before starting the
engine.
The throttle lever must open smoothly and spring back to
its home position when released.

ESU00088

Recoil starter

Check the recoil starter for proper operation and the
recoil starter rope for damage.

ESU00090

Throttle override system (T.O.R.S.)

Check the T.O.R.S. for proper operation.

WARNING

@

When checking T.O.R.S.:

●

Make sure that the parking brake is applied.

●

Make sure that the throttle lever moves smoothly.

●

Do not run the engine up to clutch engagement
r/min. Otherwise, the snowmobile could start
moving forward unexpectedly, which could cause
an accident.

@

1. Start the engine.

NOTE:

@

Refer to the “Starting the engine” section.

@

2. Hold the pivot point of the throttle lever away from the
throttle switch by putting your thumb (above) and
forefinger (below) between the throttle lever pivot
and the engine stop switch housing 2.
While holding the pivot point as described above,
press the throttle lever 3 gradually.
The T.O.R.S. will operate and the engine should run
between 2,800 and 3,000 r/min.

1

WARNING

@

If the engine does not run between 2,800 and 3,000
r/min, stop the engine by turning the main switch to
the “OFF” position and consult a Yamaha dealer.

@

6-3

ESU00091

Brake

1. Brake lever
Test the brake at a low speed when starting out to
make sure that it is working properly. If the brake
does not provide proper braking performance,
inspect the brake for wear or brake fluid leakage.
(See pages 8-16–8-17 for more details.)

WARNING

@

●

A soft, spongy feeling in the brake lever indicates
a failure in the brake system.

●

Do not operate the snowmobile if you find any
problems in the brake system. You could lose
braking ability, which could lead to an accident.
Ask a Yamaha dealer to inspect and repair the
brake system.

@

CAUTION

@

:

Make sure that the brake lever end does not project
out over the handlebar end. This is to prevent brake
lever damage when the snowmobile is placed on its
side.

@

2. Brake fluid
Check the brake fluid level. (See page 8-17.)
Add fluid if necessary.

Lower level

1

Specified brake fluid: DOT 4

6-4

ESU00093

Brake fluid leakage

Apply the brake for a few minutes. Check to see if any
brake fluid leaks out from the brake hose joints or the
master cylinder.

WARNING

@

If brake fluid leakage is found, ask a Yamaha dealer
for immediate repairs.

@

CAUTION

@

:

Brake fluid may deteriorate painted surfaces or plas­tic parts. Never spill any brake fluid. If any is spilled,
clean it up immediately.

@

ESU00094

V-bel t

Open the shroud and remove the drive guard.
Check the V-belt for wear and damage. Replace if neces­sary.

Wear limit a: 32.5 mm (1.28 in)

WARNING

@

●

Make sure that the drive guard is tightened
securely before operating the snowmobile.

●

Never run the engine without the V-belt or with
the drive guard removed.

@

ESU00096

Drive guard

Check the drive guard mounts for damage. Make sure
that the drive guard is firmly in place.

6-5

ESU00097

Drive track

Check the drive track for deflection, wear, or damage.
Adjust or replace if necessary. (See pages 8-21–8-23 for
more details.)

WARNING

@

Do not operate the snowmobile if you find damage to
the drive track, or if it has been maladjusted. Drive
track damage or failure could result in loss of brak­ing ability and snowmobile control, which could
cause an accident.

@

ESU00243

51-mm (2.0-in) high-profile pattern drive track

For MM700

This snowmobile is originally equipped with a 51-mm
(2.0-in) high-profile pattern drive track specifically for use
in deep snow riding conditions.
Therefore, avoid prolonged operation on hard surfaces
such as ice, hard-packed snow, dirt, etc., to extend the
life of the track and slide runners.

CAUTION

@

●

Only use in deep snow riding conditions.

●

Operation on areas with light snowfall, ice, hard-

:

packed snow, dirt, or grass will result in rapid
wear or damage to the track and slide runners
from lack of snow which serves as a lubricant.

@

ESU00098

Slide runners

Check the slide runners for wear and damage.
If the slide runners reach the wear limit, they should be
replaced.

Slide runners

1

Wear limit

a

Wear limit height: 10 mm (0.4 in)

CAUTION

@

Ride on fresh snow frequently. Operating on ice or
hard packed snow will rapidly wear the slide runners.

@

:

6-6

A

ESU00244

Skis and ski runners

Check the skis and ski runners for wear and damage.
Replace if necessary.

For MM700

È

Ski runner wear limit a: 8 mm (0.31 in)
Ski wear limit b: 8 mm (0.31 in)

A

B

For VT700

É

Ski runner wear limit c: 8 mm (0.31 in)
Ski wear limit d: 13 mm (0.51 in)

B

CAUTION

@

:

Avoid scratching the skis when loading and unload­ing the snowmobile, when riding in areas with little
or no snow, or on sharp edges such as concrete,
curbs, etc. This will wear or damage the skis.

@

ESU00103

Steering system

Check the handlebar for excessive free play:

1. Push the handlebar up and down and back and forth.

2. Turn the handlebar slightly to the right and left.

If excessive free play is noticed, consult a Yamaha
dealer.

ESU00105

Lights

Check the lights.
Replace any burned out bulbs.

CAUTION

@

:

Avoid using a scraper or hot water for cleaning the
plastics lens 1.

@

6-7

ESU00106

Battery

For VT700

Check the fluid level and fill if necessary.
Use only distilled water if refilling is necessary. (See
page 8-28 for more details.)

ESU00107

Air filter

Always check that no snow is on the air filter elements. If
there is any snow on the air filter elements, take them out
and remove the snow. After riding the snowmobile, make
sure that there is no snow on the air filter elements.

NOTE:

@

The air filter elements can be removed when the

●

ambient temperature is 5 °C (41.5 °F) or higher.
Before removing the air filter elements, consult a

●

Yamaha dealer.

@

6-8

ESU00110

Fittings and fasteners

Check the tightness of the fittings and fasteners.
Tighten in proper sequence and torque if necessary.

ESU00111

Tool kit and recommended equipment

It is good practice to carry the tool kit, spare parts, and
other necessary equipment with you while riding the
snowmobile so that minor repairs can be done if neces­sary. The following should be carried in the storage com­partment at all times:

Tool kit

●

Flashlight

●

Roll of plastic tape

●

Steel wire

●

Tow rope

●

Emergency starter rope

●

V-belt

●

Light bulbs

●

Spark plugs

●

When you start out for a long distance trip, extra fuel and
oil should be carried as well.

6-9

ESU00112

7-

OPERATION

ESU00281

Starting the engine

WARNING

@

●

Be sure to check the “SAFETY INFORMATION”
section carefully before starting the engine.

●

Make sure that the parking brake is applied.

@

NOTE:

@

Make sure that the engine stop switch is in the on posi­tion.

@

1. Fully open the starter lever (choke).

Starter lever (choke)

1

Fully open (cold engine starting)

2

Half-open (warm engine up)

3

Closed (warm engine starting)

4

NOTE:

@

The starter lever (choke) is not required when the engine
is warm. Put the starter lever (choke) in the closed posi­tion.

@

Manual starting model
For MM700

2. Turn the main switch to the “ON” position.

“ON”

1

3. Pull slowly on the recoil starter until it is engaged,
then pull it briskly. After the engine starts, put the
starter lever (choke) in the half-open position. Warm
up the engine until it does not run roughly or begin to
stall when the starter lever (choke) is returned to the
closed position.

7-1

Electric starting model
For VT700

2. Turn the main switch to the “START” position. After
the engine starts, put the starter lever (choke) in the
half-open position. Warm up the engine until it does
not run roughly or begin to stall when the starter lever
is returned to the closed position.

“START”

1

CAUTION

@

Release the switch immediately after the engine

●

:

starts.
If the engine fails to start, release the switch, wait

●

a few seconds, then try again. Each attempt
should be as short as possible to preserve the
battery. Do not crank the engine more than 10
seconds on any one attempt.

@

ESU00248

Emergency engine starting

Manual starting model
For MM700

If the recoil starter system should fail, take the emer­gency starter rope and the screwdriver handle out of the
tool kit and proceed as follows.

NOTE:

@

The emergency starter rope and a screwdriver handle
are supplied in the tool kit at the factory.

@

1. Proceed with the “Starting the engine” section items
1 and 2 for the “Manual starting model”.

2. Tighten the emergency starter rope on the screw­driver handle.

Screwdriver handle

1

7-2

3. Mesh the rope stopper with the edge of the primary
sheave assembly.

Rope stopper

1

Primary sheave assembly edge

2

4. Wind the rope counterclockwise three turns on the
primary sheave assembly.

5. Grasp the screwdriver handle and pull briskly.

WARNING

@

Do not wind the emergency starter rope around your
hand.

@

6. After the engine starts, put the starter lever (choke) in
the half-open position. Warm up the engine until it
does not run roughly or begin to stall when the starter
lever is returned to the closed position.

7. Install the drive guard and shroud.

WARNING

@

Avoid contact with the moving primary sheave
assembly.

@

Electric starting model
For VT700

Follow the procedures in the “Starting the engine” and
“Manual starting model” sections.

7-3

ESU00126

Break-in

There is never a more important period in the life of your
snowmobile than the break-in period. For the first
10 hours, approximately 200 km (125 mi), do not put an
excessive load on the engine. Avoid prolonged full throt­tle operation.
Also avoid lugging the engine, such as laborious opera­tion in wet snow. If any abnormal condition is noticed,
such as excessive vibration or noise, consult a Yamaha
dealer.

NOTE:

@

To ensure proper engine break-in, use a 50:1 gasoline/oil
mixture when filling the fuel tank of a new snowmobile for
the first time.
For example:
10 L of gasoline per 0.2 L of oil (1 gal of gasoline per

2.6 oz of oil) equals a 50:1 mixing ratio.
(See pages 6-1–6-2 for the recommended gasoline and
oil.)

@

7-4

ESU00127

Riding your snowmobile

totally familiar with the snowmobile’s han-
dling and performance characteristics.

Getting to know your snowmobile

A snowmobile is a rider active vehicle, and
your riding position and your balance are
the two basic factors of maneuvering your
snowmobile.
Riding your snowmobile requires skills
acquired through practice over a period of
time. Take the time to learn the basic tech­niques well before attempting more difficult
maneuvers.
Riding your new snowmobile can be a very
enjoyable activity, providing you with hours
of pleasure. However, it is essential to
familiarize yourself with the operation of
the snowmobile to achieve the skill neces­sary to enjoy riding safely. Before operating
the snowmobile, read this Owner’s Manual
completely and understand the operation
of the controls.
Pay particular attention to the safety infor­mation on pages 3-1–3-3. Please read all
warning and caution labels on your snow­mobile. Also, read the Snowmobiler’s
Safety Handbook that is supplied with your
snowmobile.

Learning to ride your snowmobile

Before you ride, always perform the pre­operation checks listed on pages 8-1–8-3.
The short time spent checking the condi­tion of the snowmobile will be rewarded
with added safety and a more reliable
snowmobile. Always wear the proper cloth­ing for both warmth and to help protect you
from injury if an accident occurs.
Become familiar with operating your snow­mobile at low speeds, even if you are an
experienced rider. Do not attempt to oper­ate at maximum performance until you are

Set the parking brake and follow the
instructions on page 7-1–7-2 to start the
engine. Once it has warmed up, you are
ready to begin riding your snowmobile.

To start out and accelerate

1. With the engine idling, release the
parking brake.

2. Apply the throttle slowly and smoothly.
The V-belt clutch will engage and you
will start to accelerate.

WARNING

@

The operator should always keep both
hands on the handlebar. Never put your
feet outside the running boards. Avoid
high speeds until you have become
thoroughly familiar with your snowmo­bile and all of its controls.

@

Braking

When slowing down or stopping, release
the throttle and apply the brake gently—not
suddenly.

WARNING

@

●

Many surfaces such as ice and hard­packed snow require much longer
stopping distances. Be alert, plan
ahead, and begin decelerating early.

●

Improper use of the brake can cause
the drive track to lose traction,
reduce control, and increase the
possibility of an accident.

@

7-5

Tu rn in g

Riding uphill

For most snow surfaces, “body English” is
the key to turning.
As you approach a curve, slow down and
begin to turn the handlebar in the desired
direction. As you do so, put your weight
on the running board to the inside of the
turn and lean your upper body into the
turn.
This procedure should be practiced at
low speed many times, in a large flat area
with no obstacles. Once you have
learned this technique, you should be
able to perform it at higher speeds or in
tighter curves. Lean more as the turn
gets sharper or is made at higher speeds.
Improper riding procedures such as
abrupt throttle changes, excessive brak­ing, incorrect body movements, or too
much speed for the sharpness of the turn
may cause the snowmobile to tip.
If your snowmobile begins to tip while
turning, lean more into the turn to regain
balance. If necessary, gradually let off on
the throttle or steer to the outside of the
turn.

Remember:

Avoid higher speeds until you are thor­oughly familiar with the operation of your
snowmobile.

You should practice first on gentle slopes.
Try more difficult climbs only after you have
developed your skill. As you approach a
hill, accelerate before you start the climb,
and then reduce the throttle opening to
prevent track slippage. It is also important
to keep your weight on the uphill side at all
times. On climbs straight up the hill this
can be accomplished by leaning forward
and, on steeper inclines, standing on the
running boards and leaning forward over
the handlebar. (Also see “Traversing a
slope.”)
Slow down as you reach the crest of the
hill, and be prepared to react to obstacles,
sharp drops, or other vehicles or people
which may be on the other side. If you are
unable to continue up a hill, do not spin the
track. Stop the engine and set the parking
brake. Then pull the rear of the snowmo­bile around to point the snowmobile back
down the hill. Do not get on the downhill
side of the snowmobile. When the snow­mobile is pointed downhill, restart the
engine, release the parking brake, and
descend the hill.

WARNING

@

Side hills and steep slopes are not rec­ommended for a novice snowmobiler.

@

7-6

Riding downhill

When riding downhill, keep speed to a min­imum. It is important to apply just enough
throttle to keep the clutch engaged while
descending the hill. This will allow you to
use engine compression to help slow the
snowmobile, and to keep the snowmobile
from rolling freely down the hill. Also apply
the brake frequently, with light pressure.

WARNING

@

Use extra caution when applying the
brake during a descent. Excessive
braking will cause the drive track to
lock, causing a loss of control.

@

Traversing a slope

downhill leg on the seat and the foot of the
uphill leg on the running board. This posi­tion will make it easier for you to shift your
body weight as needed.
Snow and ice are slippery, so be prepared
for the possibility that your snowmobile
could begin to slip sideways on the slope. If
this happens, steer in the direction of the
slide if there are no obstacles in your path.
As you regain proper balance, gradually
steer again in the direction you wish to
travel.
If your snowmobile starts to tip, steer down
the hill to regain balance.

WARNING

@

If you are unable to maintain correct
balance, and your snowmobile is going
to tip over, dismount your snowmobile
immediately on the uphill side.

@

Ice or icy surface

Operating on ice or icy surfaces can be
very dangerous. Traction for turning, stop­ping, or starting is much less than that on
snow.

WARNING

@

Traversing slopes is not recommended
for a novice snowmobiler.

@

Traversing a slope requires you to properly
position your weight to maintain proper bal­ance. As you travel across the slope, lean
your body to position your weight towards
the uphill side. A recommended riding
position is to kneel with the knee of the

WARNING

@

When you have to operate on ice or icy
surfaces, drive slowly and cautiously.
Avoid accelerating, turning, or braking
rapidly. Steering is minimal and uncon­trolled spins are an ever-present dan­ger.

@

7-7

Hard-packed snow

It can be more difficult to negotiate on
hard-packed snow as both the skis and
drive track do not have as much traction
as when the snowmobile is operated on
fresh snow. Avoid rapid acceleration,
turning, or braking.

Operation on surfaces other than
snow or ice

Operation of your snowmobile on sur­faces other than snow or ice should be
avoided. Operation under such conditions
will damage or result in rapid wear of the
ski runners, drive track, slide runners,
and drive sprockets. Operation of the
snowmobile under the following condi­tions should be avoided at all costs:

1. Dirt

2. Sand

3. Rocks

4. Grass

5. Bare pavement
Other conditions that should be avoided
for the sake of drive track and slide run­ner life are:

1. Glare ice surfaces

2. Snow mixed with a lot of dirt and sand
All the above conditions have one thing in
common in regard to drive track and slide
runners; little or no lubricating ability.
Drive track and all slide rail systems
require lubrication (snow or water)
between the slide runners and the slide
metal. In the absence of lubrication, the
slide runners will rapidly wear and in
severe cases, literally melt away, and the
drive track will be subjected to damage or
failure.
Also traction aids such as studs, cleats,
etc., may cause further track damage or
failure.

WARNING

@

Drive track damage or failure could
result in loss of braking ability and
snowmobile control, which could cause
an accident.

●

Always check the drive track for
damage or maladjustment before
operating the snowmobile.

●

Do not operate the snowmobile if
you find damage to the drive track.

@

CAUTION

@

:

Ride on fresh snow frequently. Operat­ing on ice or hard-packed snow will rap­idly wear the slide runners.

@

7-8

ESU00251

Maximizing drive track life

Recommendations

Track tension

During initial break-in, the new drive track will tend to
stretch quickly as the track settles. Be sure to correct the
track tension and alignment frequently. (See pages
8-22–8-24 for adjustment procedures.) A loose track can
slip (ratchet), derail or catch on suspension parts caus­ing severe damage. Do not overtighten the drive track,
otherwise it may increase the friction between the track
and the slide runners, resulting in the rapid wear of both
components. Also, this may put an excessive load on the
suspension components, resulting in component failure.

Marginal snow

The drive track and the slide runners are lubricated and
cooled by snow and water. To prevent the drive track and
slide runners from overheating, avoid sustained high­speed usage in areas such as icy trails, frozen lakes and
rivers that have minimal snow coverage. An overheated
track will be weakened internally, which may cause fail­ure or damage.

Off-trail riding

Avoid off-trail riding until there is sufficient snow cover­age. It generally takes several feet of snow to provide a
good overall base to properly cover debris, such as
rocks, logs, etc. If snow coverage is not sufficient, stay on
trails to avoid impact damage to the drive track.

Studded track

In general, track life will be shortened when studs are
installed. Drilling stud holes into the drive track will cut
the internal fibers, which weakens the track. Avoid spin­ning the drive track. Studs may catch on an object and
pull out of the track, leaving tears and damage around
the already weakened area. To minimize possible dam­age, consult your stud manufacturer for installation and
stud pattern recommendations.

Yamaha does not recommend track studding.

7-9

ESU00245

Strap

For MM700

The strap 1 should be used only by experienced opera­tors to assist them when traverse (side-hill) riding.

WARNING

@

Improper use of the strap on the handlebar can
result in severe injury or death.

●

Use the strap only as an operator grip point when
needed to shift weight uphill to maintain balance
during traverse (side-hill) riding. Only experi­enced operators should traverse slopes steep
enough to require strap use.

●

Keep the right hand on the right handlebar grip
for steering, and grip the strap with the left hand
to shift weight uphill for balance during traverse
riding.

●

Ride cautiously while using the strap. Do not
accelerate or decelerate abruptly while holding
onto the strap.

●

Do not use the strap to lift the snowmobile.

●

Do not use the strap as a mounting point for
cargo or accessories.

@

7-10

ESU00318

Driving

WARNING

@

Be sure to read the “SAFETY INFORMATION” and
“Riding your snowmobile” sections carefully before

operating the snowmobile.

@

NOTE:

@

Make sure that the engine is warmed up enough before
riding.

@

For MM700

1. Release the parking brake by moving the parking
brake lever to the right.

2. Press the throttle lever slowly to move the snowmo­bile.

3. Turn the handlebar in the desired direction.

4. Squeeze the brake lever to stop the snowmobile.

5. Apply the parking brake by moving the parking brake
lever to the left.

For VT700

1. Select the desirable operating position by moving the
shift lever.

Push down

1

“FWD” Forward

2

“REV” Reverse

3

WARNING

@

●

Make sure that the throttle lever is fully released
and the snowmobile is at a full stop before shift­ing.

●

Be sure to move the shift lever to forward or
reverse until it stops completely while the engine
is idling.

●

Make sure that the area behind the snowmobile is
clear before reversing. Watch behind.

●

Reduce speed and avoid sharp turning when
operating the snowmobile in reverse.

@

NOTE:

@

The reverse buzzer beeps while the shift lever is in
reverse.

@

7-11

2. Release the parking brake by moving the parking
brake lever to the right.

3. Press the throttle lever slowly to move the snowmo­bile.

4. Turn the handlebar in the desired direction.

5. Squeeze the brake lever to stop the snowmobile.

6. Apply the parking brake by moving the parking brake
lever to the left.

BA

ESU00137

Stopping the engine

Turn the main switch to the “OFF” position to stop the
engine.

“OFF”

1

MM700

È

VT700

É

WARNING

@

●

Push down the engine stop switch to stop the
engine in an emergency.

●

Make sure that the key is removed from the main
switch whenever the operator leaves the snow­mobile, to prevent accidental starting.

@

7-12

ESU00138

Transporting

When transporting your snowmobile on a trailer or in a
truck, observe the following recommendations to help
protect it from damage:

Make sure that the fuel level in the fuel tank is lower

●

than the bottom of the carburetors. Otherwise, the
vibration and bumps from the road surface could
make it possible for fuel to flow through the carbure­tors into the crankcase. This can result in “hydrostatic
lock,” a condition where the engine cannot rotate
because of fuel accumulated in the engine. Severe
engine damage can result from hydrostatic lock.
When possible, the fuel tank should be empty during
transportation, especially if the trip will be longer than
30 minutes.
If transporting the snowmobile in an open trailer or

●

truck, put a tight fitting cover on the snowmobile. A
cover specifically designed for your snowmobile is
best. This will help keep foreign objects out of the
cooling vents in the shroud, and also help protect the
snowmobile against damage from debris on the road.
If transporting the snowmobile in an open trailer or

●

truck in areas where road salt is used, coat metal
suspension surfaces lightly with oil or other pro­tectant. This will help protect against corrosion. Be
sure to clean the snowmobile when you get to your
destination to remove any corrosive salts.

7-13

ESU00139

8-

PERIODIC MAINTENANCE

ESU00140

Periodic maintenance chart

Regular maintenance is most important for best performance and safe operation.

CD-01E

Pre-

Item Remarks

operation

check

(Daily)

Check condition.

Spark plugs

Adjust gap and clean.
Replace if necessary.

Engine oil

Check oil level.

Air bleed the oil pump if

∗

●

necessary.

Fuel Check fuel level.

Fuel filter

∗

Check condition.
Replace if necessary.

●

Check fuel hose for cracks or

Fuel line

∗

damage.
Replace if necessary.

Check oil hose for cracks or

Oil line

∗

damage.
Replace if necessary.

Engine coolant

Check coolant level.

Air bleed the cooling system

∗

●

if necessary.

Carburetor

Check throttle lever operation.

Adjust the jets.

∗

●

Whenever operating condition
(elevation/temperature) is changed.

Check operation and rope

Recoil starter

Engine stop switch

Throttle override
system (T.O.R.S.)

Throttle lever

It is recommended that these items be serviced by a Yamaha dealer.

∗

damage.

Replace if necessary.

∗

Check operation.

Repair if necessary.

∗

Check operation.

Repair if necessary.

∗

Check operation.

Repair if necessary.

∗

●

●

●

●

Initial

1 month

or

800 km

(500 mi)

(40 hr)

Every

Seasonally

or

3,200 km

(2,000 mi)

(160 hr)

●

●

●

●

●

●

Page

8-4–8-5

6-2

6-1–6-2

6-2,

8-10–8-11

8-10–8-11

5-2, 6-3

8-6

6-3

5-6

5-2–5-3,

6-3

5-2, 6-3

8-1

Pre-

Item Remarks

operation

check

(Daily)

Check for leakage.

Exhaust system

∗

Tighten or replace gasket if
necessary.

Decarbonization More frequently if necessary.

∗

Check for cracks, bends or

Drive guard

V-belt

Drive track and idler
wheels

Slide runners

Brake and parking
brake

damage.

Replace if necessary.

∗

Check for wear and damage.
Replace if necessary.

Check deflection, and for wear
and damage.

Adjust/replace if necessary.

∗

Check for wear and damage.

Replace if necessary.

∗

Check operation and fluid
leakage.

Adjust free play and/or re-

∗

●

●

●

●

●

place pads if necessary.

Replace brake fluid. See NOTE on page 8-3. 8-18

∗

Drive chain oil

Drive chain

Skis and ski runners

Steering system

Strap (MM700)

Lights

Check oil level.

Replace.

∗

Check deflection.

Adjust if necessary.

∗

Check for wear and damage.

Replace if necessary.

∗

Check operation.

Adjust toe-out if necessary.

∗

Check for damage.

Replace if necessary.

∗

Check operation.
Replace bulbs if necessary.

Initial at 500 km (300 mi) and every
800 km (500 mi) thereafter.

●

●

●

●

Check fluid level.

Battery (VT700)

Add only distilled water if nec­essary.

Check specific gravity and

∗

●

breather hose operation.
Charge/correct if necessary.

It is recommended that these items be serviced by a Yamaha dealer.

∗

Initial

1 month

or

800 km

(500 mi)

(40 hr)

●

Every

Seasonally

or

3,200 km

(2,000 mi)

(160 hr)

●

●

●

●

●

●

●

●

Page

5-10, 6-5

6-5,

8-12–8-14

6-6,

8-21–8-23

6-6

5-6–5-7,

6-4–6-5

8-16–8-17

8-14–8-15

8-15

6-7

6-7

6-7, 8-27

6-8, 8-28

8-2

Pre-

Item Remarks

operation

check

(Daily)

Check engagement and shift
speed.
Adjust if necessary.

Whenever operating elevation is changed.

Inspect sheaves for wear/
damage.

Primary and second-

∗

ary clutches

Inspect weights/rollers and
bushings for wear-for primary.
Inspect ramp shoes/bushings
for wear-for secondary.
Replace if necessary.

Lubricate with specified
grease.

Steering column

∗

bearing

Ski and front

∗

suspension

Suspension

∗

component

Parking brake cable

∗

end and lever end/
throttle cable end

Shroud latches

Fittings and fasteners

Tool kit and recom­mended equipment

It is recommended that these items be serviced by a Yamaha dealer.

∗

Lubricate with specified
grease.

Lubricate with specified
grease.

Lubricate with specified
grease.

Lubricate with specified
grease.

Check cable damage.
Replace if necessary.

Make sure that the shroud
latches are hooked.

Check tightness.

Repair if necessary.

∗

Check for proper placement.

●

●

●

Initial

1 month

or

800 km

(500 mi)

(40 hr)

Every

Seasonally

or

3,200 km

(2,000 mi)

(160 hr)

●

●

●

●

●

●

●

●

Page

8-26

8-26

8-26

8-26

5-9

6-9

6-9

NOTE:

@

Brake fluid replacement:

1. When disassembling the master cylinder or caliper cylinder, replace the brake fluid.
Normally check the brake fluid level and add the fluid as required.

2. On the inner parts of the master cylinder and caliper cylinder, replace the oil seals
every two years.

3. Replace the brake hose every four years, or if cracked or damaged.

@

8-3

A

ESU00143

Tool kit

The owner’s tool kit has the tools which are sufficient for
most periodic maintenance and minor repair. A torque
wrench is also necessary to properly tighten nuts and
bolts.

Tool kit

B

1

È
É

MM700
VT700

CAUTION

@

:

Before starting the engine, make sure that the tool
kit is firmly seated in the holder and is secured with
the holding band.

@

NOTE:

@

If you do not have a torque wrench available during a
service operation requiring one, take your snowmobile to
a Yamaha dealer to check the torque settings and adjust
them if necessary.

@

ESU00144

Spark plug inspection

The spark plug is an important engine component and is
easy to inspect. The condition of the spark plug can indi­cate the condition of the engine. Check the coloration on
the white porcelain insulator around the center electrode.
The ideal coloration at this point is a medium to a light
tan color for a snowmobile that is being ridden normally.
If a spark plug shows a distinctly different color, there
could be something wrong with the engine. For example,
a very white center electrode porcelain color could indi­cate an intake track air leak or carburetion problem for
that cylinder. Do not attempt to diagnose such problems
yourself. Instead, take the snowmobile to a Yamaha
dealer for inspection and possible repairs. You should
periodically remove and inspect the spark plug because
heat and deposits will cause a spark plug to slowly break
down and erode. Consult a Yamaha dealer before chang­ing to a different type of spark plug.

Specified spark plug: BR9ES (NGK)

8-4

Spark plugs are produced in several different thread
lengths. The thread length or reach is the distance from
the spark plug gasket seat to the end of the threaded
portion. If the reach is too long, overheating and engine
damage may result. If the reach is too short, spark plug
fouling and poor performance may result. Also, if the
reach is too short, carbon will form on the exposed
threads resulting in combustion chamber hot spots and
thread damage. Always use a spark plug with the speci­fied reach.

Spark plug reach a: 19.0 mm (0.75 in)

Before installing any spark plug, measure the electrode gap
with a wire thickness gauge and adjust to specification.

Spark plug gap b: 0.7–0.8 mm (0.028–0.031 in)

When installing the spark plug, always clean the gasket
surface. Wipe off any grime from the threads and tighten
the spark plug to the specified torque.

Spark plug tightening torque:

20 Nm (2.0 m·kg, 14 ft·lb)

ESU00145

Engine idle speed adjustment

CAUTION

@

●

Be sure to have a Yamaha dealer make this
adjustment.

●

Make sure that the throttle lever moves smoothly.

●

Make sure that the carburetor is synchronized
first.

@

1. Start the engine.

NOTE:

@

Refer to the “Starting the engine” section.

@

2. Turn the throttle stop screw 1 in or out to adjust the
engine idle speed.

Standard engine idle speed: 1,600 ± 100 r/min

:

8-5

ESU00147

Throttle cable adjustment

CAUTION

@

:

Be sure to adjust the engine idle speed first.

@

1. Loosen the locknut.

2. Turn the adjuster in or out until the proper throttle
lever free play is achieved.

Throttle lever free play a:

1.0–2.0 mm (0.04–0.08 in)

Locknut

1

Adjuster

2

3. Tighten the locknut.

ESU00149

Oil pump cable adjustment

CAUTION

@

Be sure to adjust the throttle cable first.

@

1. Loosen the locknut.

2. Pull the oil pump outer cable and adjust the free play
between the adjuster and outer cable by turning the
adjuster in or out.

:

Pump cable free play a:

22 ± 1 mm (0.87 ± 0.04 in)

Locknut

1

Adjuster

2

3. Tighten the locknut.

8-6

ESU00150

Carburetor adjustment

CAUTION

@

●

Be sure to have a Yamaha dealer make this

:

adjustment.

●

Make sure that the carburetor silencer is installed
during running to prevent engine damage.

@

Under some operating conditions the carburetor setting
may have to be changed due to air temperature changes,
elevation changes, use of alcohol oxygenated fuels, etc.,
and should be set by a Yamaha dealer.

CAUTION

@

:

The drive chain gears and V-belt clutch should be
adjusted when operating over a high altitude of
900 m (3,000 ft). Consult a Yamaha dealer.

@

Pilot screw adjustment

Turn the pilot screw in or out to adjust low speed tuning.

Standard pilot screw position:

1 1/2 turns out from the seated position.

CD-02E

Pilot screw

1

Turn in Lean

Turn out Rich

Mixture Condition

Warm weather

High altitude

Cold weather

Low altitude

8-7

Jet needle adjustment

Adjust the jet needle by changing its clip position accord­ing to the setting chart which is available at a Yamaha
dealer.

Standard jet needle clip 1 position:

3rd groove from upper end

CD-03E

Clip position Mixture Condition

Upper end Lean

2

Lower end Rich

3

Warm weather

High altitude

Cold weather

Low altitude

1. Remove the top cover of the carburetor and jet nee­dle.

2. Change the clip to the proper position. Make sure
that the plastic washer is in place below the clip.

WARNING

@

Make sure that the throttle outer cable is firmly
seated in the holder and the throttle operates
smoothly after assembling the carburetor.

@

3. Assemble by reversing the removal steps.

Main jet replacement

Replace the main jet according to the setting chart which
is available at a Yamaha dealer.

WARNING

@

Never remove the drain plug or the float chamber

●

while the engine is hot. Fuel will flow out from the
float chamber which could ignite and cause
injury.
Place a rag under the carburetor before removing

●

the drain plug or float chamber to catch any
spilled fuel.
Handle fuel with care: it is HIGHLY FLAMMABLE.

●

@

8-8

Standard main jet:

No.1 Carburetor (P.T.O. side)

1

# 145

No.2 and No.3 Carburetors (center and magne-

2, 3

to side)

# 143.8

CD-04E

Main jet

4

Small No. Lean

Large No. Rich

Mixture Condition

Warm weather

High altitude

Cold weather

Low altitude

1. Loosen the carburetor clamps and remove the carbu­retor.

2. Pinch the fuel hose to prevent fuel flowing.

3. Remove the drain plug and install the proper main jet.

4. Assemble by reversing the removal steps.

WARNING

@

Make sure that the throttle outer cable is firmly
seated in the holder and throttle operates smoothly
after assembling the carburetor.

@

ESU00157

High altitude adjustments

Operating at high altitude reduces the performance of a
gasoline engine to about 3% for every 305 m (1,000 ft) of
elevation. This is because there is less air as altitude
increases. Less air means less oxygen available for com­bustion.
Your snowmobile can be adjusted to overcome most of
the problems found in high altitude riding. Carburetor
adjustments are the most important. Less air at high alti­tude makes the air/fuel ratio too rich, which can cause
poor performance. Common problems are hard starting,
bogging, and plug fouling. Follow the Main Jet Setting
chart which is available at a Yamaha dealer carefully.
Proper carburetion adjustments will correct the air/fuel
ratio.

8-9

Remember:

less air at higher altitude means there is
less horsepower available, even with proper carburetion.
Expect acceleration and top speed to be reduced at
higher altitudes.

To overcome operating with less power at high altitudes,
your snowmobile may also require different settings for
the drive chain gears and V-belt clutch to avoid poor per­formance and rapid wear. If you plan to operate your
snowmobile at an altitude different from the area where
you bought it, be sure to consult a Yamaha dealer. They
can tell you if there are any changes necessary for the
altitude where you plan to ride.

CAUTION

@

:

The drive chain gears and V-belt clutch should be
adjusted when operating over a high altitude of
900 m (3,000 ft). Consult a Yamaha dealer.

@

ESU00160

Cooling system

Air bleeding the cooling system

WARNING

@

Do not remove the coolant filler cap when the

●

engine and radiator are hot. Scalding hot fluid
and steam may be blown out under pressure,
which could cause serious injury.
When the engine has cooled, place a thick rag or
a towel over the coolant filler cap, slowly rotate
the cap counterclockwise to the detent. This pro­cedure allows any residual pressure to escape.
When the hissing sound has stopped, press
down on the cap while turning counterclockwise
and remove it.
The cooling system must be bled of air if the

●

coolant reservoir becomes empty, if air can be
seen in the cooling system, or if there is a cooling
system leak. Consult a Yamaha dealer.

@

8-10

CAUTION

@

:

Operating the engine with an improperly bled cool­ing system can cause overheating and severe
engine damage.

@

Coolant replenishment

1. Remove the coolant filler cap and pour the coolant to
the proper level.

Coolant level

1

To coolant reservoir

2

Recommended coolant:

High quality ethylene glycol antifreeze containing cor­rosion inhibitors.

Coolant and water mixing ratio:

60:40

Total amount:

For MM700

3.9 L (3.43 Imp qt, 4.12 US qt)

For VT700

4.0 L (3.52 lmp qt, 4.23 US qt)

Coolant reservoir capacity:

0.28 L (0.25 Imp qt, 0.30 US qt)

“LOW” to “FULL”:

0.13 L (0.11 Imp qt, 0.14 US qt)

2. Start the engine and add coolant until the coolant
level does not go down, and then stop the engine.

3. Remove the coolant reservoir cap.

4. Fill the coolant reservoir with coolant to “FULL” 3.

5. Install the coolant filler and coolant reservoir caps.
Check for any coolant leakage.

NOTE:

@

If you find any leaks, consult a Yamaha dealer.

@

8-11

ESU00166

V-belt replacement

WARNING

@

When installing the new V-belt, make sure it is posi­tioned from 1.5 mm (0.06 in) above the edge of the
secondary sheave assembly to 0.5 mm (0.02 in)
below the edge a.
If not, the V-belt clutch engagement speed will be
changed. The snowmobile may move unexpectedly
when the engine is started.
Adjust the V-belt position by removing or adding a
spacer 1 on each adjusting bolt.
Have a Yamaha dealer make this adjustment.

@

CAUTION

@

:

As the V-belt wears, adjustment may be necessary.
To ensure proper clutch performance, the V-belt
position should be adjusted by adding a spacer on
each adjusting bolt when the V-belt position reaches

1.5 mm (0.06 in) below the edge.
Have a Yamaha dealer make this adjustment.

@

CD-05E

New belt width 34.5 mm (1.36 in)

Belt wear limit width 32.5 mm (1.28 in)

NOTE:

@

Apply the parking brake before replacing the V-belt.

@

1. Remove the drive guard.

2. Rotate the secondary sliding sheave clockwise

1

and push 2 it so that it separates from the secondary
fixed sheave.

8-12

3. Pull 3 the V-belt up over the secondary fixed sheave.

4. Remove the V-belt from the secondary sheave
assembly and primary sheave assembly.

5. Put the new V-belt back on the secondary sheave
assembly only. Do not force the V-belt between the
sheaves; the secondary sliding and fixed sheave
must touch each other. Measure the V-belt position.

Standard V-belt position a:

From 1.5 mm (0.06 in) above the edge of the second­ary sheave to 0.5 mm (0.02 in) below the edge.

6. If the position is incorrect, adjust the V-belt position
by removing or adding a spacer 4 on each adjusting
bolt 5.

CD-06E

V-belt position Adjustment

More than 1.5 mm (0.06 in)
above the edge

From 1.5 mm (0.06 in)
above the edge to 0.5 mm
(0.02 in) below the edge

More than 0.5 mm (0.02 in)
below the edge

Remove spacer

Not necessary
(It is correct.)

Add spacer

7. Tighten each adjusting bolt.

Adjusting bolt tightening torque:

10 Nm (1.0 m·kg, 7.2 ft·lb)

8-13

8. Install the V-belt over the primary sheave assembly.

9. Rotate the secondary sliding sheave clockwise

6

and push 7 it so that it separates from the secondary
fixed sheave.

10. Install the V-belt 8 between the secondary sliding
and secondary fixed sheaves.

11. Install the drive guard.

WARNING

@

Never run the engine with the V-belt or drive guard
removed.

@

ESU00171

Checking the oil level of the drive chain housing

WARNING

@

The engine and muffler will be very hot after the
engine has been run. Avoid touching the engine and
muffler while they are still hot with any part of your
body or clothing during inspection or repair.

@

1. Place the snowmobile on a level surface.

2. Remove the dipstick 1 and wipe it off with a clean
rag. Then put the dipstick in the hole.

CAUTION

@

:

There is a magnet attached to the end of the dipstick.
It is used to remove any metal particles that may
accumulate in the drive chain housing. When remov­ing the dipstick be sure to:

Pull it out slowly and gently so the metal particles

●

do not fall off the magnet back into the drive
chain housing.
Wipe off the magnet before reinserting the dip-

●

stick into the drive chain housing.

@

8-14

A B

3. Pull up the dipstick and check that the oil is between
the upper and lower levels. If not, add oil to the upper
level.

Upper level

2

Lower level

3

Drive chain oil: API GL-3

SAE 75 or 80

For models without reverse transmissions

È

(MM700)
For models with reverse transmissions

É

(VT700)

CAUTION

@

:

Make sure that no foreign material enters the drive
chain housing.

@

4. Reinstall the dipstick and fit the loop 4 of the dipstick
handle onto the projection 5 of the gear case.

Chain tension adjustment

1. Loosen locknut.

2. Turn the adjuster bolt clockwise until it is finger tight.

3. Hold the adjuster bolt in place while tightening the
chain adjuster locknut.

Locknut

1

Adjuster bolt

2

8-15

ESU00174

Checking the brake pads

Check the brake pads for wear.
If the brake pads reach the wear limit, ask a Yamaha
dealer to replace them.

Brake pad wear indicator

1

Wear limit a: 1.5 mm (0.06 in)

ESU00179

Checking the parking brake pads

Check the parking brake pads for wear by measuring the
thickness of the pads.
If the parking brake pads reach the wear limit, ask a
Yamaha dealer to replace them.

Wear limit a: 1.0 mm (0.04 in)

Adjustment

As the parking brake pads wear, adjustment may be nec­essary to ensure proper brake performance.

WARNING

@

Be sure to have a Yamaha dealer make this adjust­ment.

@

1. Loosen the locknut 1.

2. Turn the parking brake adjuster 2 in or out to adjust
the clearance between the parking brake pad 3 and
brake disc 4.

Clearance a: 1.2–1.3 mm (0.047–0.051 in)

3. Turn the cable adjuster 5 in or out to adjust the clear­ance between the parking brake pad 6 and brake
disc 4.

Clearance b: 1.2–1.3 mm (0.047–0.051 in)

4. Tighten the locknut.

8-16

ESU00180

Checking the brake fluid level

Place the snowmobile on a level surface. Check that the
brake fluid is above the lower level and replenish when
necessary.

Lower level

1

Specified brake fluid: DOT 4

WARNING

@

Be careful that water does not enter the master cylin­der when refilling. Water will significantly lower the
boiling point of the fluid and may result in vapor
lock.
If the brake fluid level goes down, consult a Yamaha
dealer.

@

CAUTION

@

:

Brake fluid may deteriorate painted surfaces or plas­tic parts. Never spill any fluid. If any is spilled, clean
it up immediately.

@

ESU00181

Brake fluid replacement

Brake fluid replacement is necessary when the following
components are replaced during the periodic mainte­nance or if they are damaged or leaking.

a. All oil seals of the master cylinder and caliper cylinder

b. The brake hose

WARNING

@

Make sure that the brake fluid and the above parts
are replaced by a Yamaha dealer.

@

8-17

ESU00183

Suspension

The suspension can be adjusted to suit rider preference.
A softer setting, for example, may provide greater rider
comfort, while a harder setting may allow more precise
handling and control over certain types of terrain or riding
conditions.

WARNING

@

Be sure to have a Yamaha dealer make this adjust­ment.

@

ESU00190

Ski spring preload adjustment

The spring preload can be adjusted by turning the spring
preload adjuster 1.

For MM700

CD-10E

Spring adjuster position 54321

Preload

Standard 3

Hard Soft

2

3

For VT700

CD-10E

Spring adjuster position 54321

Preload

Hard Soft

2

3

Standard 1

CAUTION

@

:

The left and right ski spring preload must be set to
the same pressure. Uneven settings can cause poor
handling and loss of stability.

@

ESU00194

Rear suspension spring preload adjustment

The rear suspension is equipped with two shock absorb­ers. One is in the front 1 and the other is in the rear 2 of
the rear suspension assembly.

8-18

The spring preload can be adjusted by turning the spring
preload adjuster 3 on the front and rear shock absorb­ers.

WARNING

@

Be sure to have a Yamaha dealer make this adjust­ment.

@

A

For MM700

CD-13E

Spring adjuster position 12345

Preload Soft Hard

Standard (front) 3

È

B

CD-14E

Spring adjuster position 1234567

Preload Soft Hard

Standard (rear) 4

É

C

For VT700

CD-13E

Spring adjuster position 12345

Preload Soft Hard

Standard (front) 3

Ê

D

CD-14E

Spring adjuster position 1234567

Preload Soft Hard

Standard (rear) 4

Ë

8-19

ESU00197

Rear suspension full rate adjustment

The total suspension spring rate and damping character­istics can be adjusted by changing the installed position
of the shock absorber.

WARNING

@

Be sure to have a Yamaha dealer make this adjust­ment.

@

CD-07E

Installation position C B A

Spring rate and
damping

Hard Medium Soft

Standard B

NOTE:

@

Be sure to make this adjustment when there is no load
(rider or cargo) on the snowmobile.

@

1. Loosen the full rate adjusting nut 1 1/2 or 3/4 turn,
while holding the adjusting bolt 2 securely with a
wrench so it does not move.

CAUTION

@

:

Never allow the adjusting bolt 2 to move while loos­ening the nut.

@

2. Turn the adjusting bolt 2 to the desired position.

CAUTION

@

:

Make sure that the adjusting bolt ends are set at the
same position on each side.

@

3. While holding the adjusting bolt securely, tighten the
full rate adjusting nut 1.

Full rate adjusting nut tightening torque:

49 Nm (4.9 m·kg, 35.4 ft·lb)

CAUTION

@

:

Never allow the adjusting bolt to move while tighten­ing the nut.

@

8-20

ESU00313

Drive track adjustment

WARNING

@

A broken track, track fittings or debris thrown by the
drive track could be dangerous to an operator or
bystanders. Observe the following precautions:

●

Do not allow anyone to stand behind the snow­mobile when the engine is running.

●

When the rear of the snowmobile is raised to
allow the drive track to spin, a suitable stand
must be used to support the rear of the snowmo­bile. Never allow anyone to hold the rear of the
snowmobile off the ground to allow the drive
track to spin. Never allow anyone near a rotating
drive track.

●

Inspect the drive track condition frequently.
Replace damaged slide metal. Replace the drive
track if it is damaged to the depth where fabric
reinforcement material is visible or support rods
are broken. Otherwise, track damage or failure
could result in loss of braking ability and snow­mobile control, which could cause an accident.

@

Drive track deflection measurement

1. Lay the snowmobile on its side.

2. Measure the drive track deflection with a spring
scale. Pull at the center of the drive track with a force
of 100 N (10 kg, 22 lb).

NOTE:

@

Measure the gap between the slide runner and the edge
of the track window. Measure both sides.

@

Deflection

1

100 N (10 kg, 22 lb)

2

Standard drive track deflection:

For MM700

20–25 mm (0.79–0.98 in) / 100 N (10 kg, 22 lb)

For VT700

25–30 mm (0.98–1.18 in) / 100 N (10 kg, 22 lb)

3. If the deflection is incorrect, adjust the drive track.

8-21

Drive track adjustment

WARNING

@

Be sure to have a Yamaha dealer make this

●

adjustment.
Support the snowmobile securely on a suitable

●

stand before working underneath the snowmo­bile.
Operate the engine in a well-ventilated area.

●

@

1. Lift the rear of the snowmobile onto a suitable stand
to raise the drive track off the ground.

2. Loosen the rear axle nut 1.

NOTE:

@

It is not necessary to remove the cotter pin 2.

@

3. Start the engine and rotate the drive track one or two
turns. Stop the engine.

4. Check the drive track alignment with the slide
runners3. If the alignment is incorrect, align the
drive track by turning the left and right adjusters.

6 7

CD-08E

Drive track

alignment

Left adjuster Turn out Turn in

4

Right adjuster Turn in Turn out

5

Slide runners

8

Drive track

9

Slide metal

0

Gap

a

Forward

b

Shifted to right7 Shifted to left

6

5. Adjust the drive track deflection to specification.

CD-09E

Drive track

deflection

Left adjuster Turn in Turn out

4

Right adjuster Turn in Turn out

5

8-22

More than

specified

Less than

specified

CAUTION

@

:

The right and left adjusters should be turned to an
equal amount.

@

6. Recheck alignment and deflection. If necessary,
repeat steps 3 to 5 until the proper adjustment is
achieved.

7. Tighten the rear axle nut.

Rear axle tightening torque:

75 Nm (7.5 m·kgf, 54.2 ft·lb)

ESU00200

Ski alignment

1. Turn the handlebar so the skis face straight ahead.

2. Check the following for ski alignment:
a. Skis are facing forward.
b. Ski toe-out (1 – 2) is within specification.

Ski toe-out (1 – 2): 0–15 mm (0–0.59 in)

3. If the alignment is not correct, consult a Yamaha
dealer.

8-23

ESU00246

Handlebar adjustment

For VT700

1. Remove the handlebar cover 1.

2. Loosen the handlebar bolts. Move the handlebar up
or down to adjust the handlebar height to the desired
position.

3. Tighten the handlebar bolts and install the handlebar
cover.

Handlebar bolt tightening torque:

23 Nm (2.3 m·kg, 17 ft·lb)

CAUTION

@

:

Make sure that the small gap a side of the handlebar
holders faces forward b.

@

8-24

For MM700

1. Remove the handlebar cover 1.

2. Loosen the handlebar bolts.

3. Move the handlebar up or down (± 7°) to adjust the
handlebar height to the desired position.

CAUTION

@

:

Make sure that the projection on the handlebar is not
installed into the area a shown.

@

4. Tighten the handlebar bolts and install the handlebar
cover.

Handlebar bolt tightening torque:

23 Nm (2.3 m·kg, 17 ft·lb)

CAUTION

@

:

Make sure that the small gap b side of the handlebar
holders faces forward c.

@

8-25

ESU00247

Lubrication

Lubricate the following points.

Lubricant: Low-temperature grease

Throttle cable ends

1

22

3

3

4

WARNING

@

Apply a dab of grease onto the cable end only. Do
not grease the brake or throttle cables themselves
because they could become frozen, which could
cause loss of control.

@

Steering

2

Front suspension

3

Rear suspension

4

8-26

ESU00208

Headlight bulb replacement

1. Lift up the shroud.

2. Disconnect the headlight connector.

3. Remove the bulb holder cover.

4. Remove the bulb holder by depressing and turning it
counterclockwise.

Bulb holder cover

1

5. Remove the bulb.

WARNING

@

Keep flammable products or your hands away from
the hot bulb until it cools down.

@

6. Install the new bulb.

Bulb type: 12 V, 60/55 W

CAUTION

@

:

Keep oil or your hands away from the glass part of
the bulb or its life and illumination will be affected.
If the glass is oil stained, thoroughly clean it with a
cloth moistened with alcohol or lacquer thinner.

@

ESU00212

Headlight beam adjustment

1. Turn the headlight beam adjuster 1 in or out to
adjust the headlight beam.

Headlight beam moves:

Down and to the left

a

Up and to the right

b

Down and to the right

c

Up and to the left

d

8-27

ESU00213

Battery

For VT700
Replenishing the battery fluid

1. Check the fluid level. The level should be between the
upper and lower level marks.

“UPPER LEVEL”

a

“LOWER LEVEL”

b

2. Add only distilled water if necessary.

CAUTION

@

:

Normal tap water contains minerals which are harm­ful to a battery; therefore refill only with distilled
water.

@

WARNING

@

Battery electrolyte is poisonous and dangerous. It
contains sulfuric acid and can cause severe burns.
Avoid contact with skin, eyes, or clothing.
ANTIDOTE:

●

EXTERNAL: Flush with water.

●

INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten egg,
or vegetable oil. Call physician immediately.

●

EYES: Flush with water for 15 minutes and get
prompt medical attention.

Batteries produce explosive gases. Keep sparks,
flame, cigarettes, etc. away. Ventilate when charging
or using in an enclosed space. Always shield your
eyes when working near batteries.
KEEP OUT OF THE REACH OF CHILDREN.

@

8-28

ESU00282

Fuse replacement

For VT700

WARNING

@

Be sure to use the specified fuse. A wrong fuse will
cause electrical system damage and A FIRE HAZ­ARD.

@

CAUTION

@

:

Make sure that the main switch is turned off to pre­vent accidental short circuiting.

@

1. Lift up the shroud.

2. Replace the blown fuse with one of proper amperage.

NOTE:

@

If the fuse immediately blows again, ask a Yamaha
dealer to inspect the snowmobile.

@

Specified fuses:

Main fuse: 30 A

1

“HEAD” fuse: 20 A

2

“TAIL” fuse: 10 A

3

“IGNITION” fuse: 10 A

4

Spare fuses (20 A, 10 A)

5

Spare main fuse

6

8-29

ESU00294

9-

TROUBLESHOOTING

A. Engine turns over but does not start

1. Fuel system
No fuel supplied to combustion cham­ber
No fuel in tank ... Supply fuel.

●

Clogged fuel line ... Clean fuel line.

●

Clogged carburetor ... Clean carbure-

●

tor.
Fuel supplied to combustion chamber
Flooded engine (too much choke) ...

●

Crank engine with throttle open or wipe
the spark plugs dry.

2. Electrical system
Poor or no spark
Spark plugs are dirty with carbon or are

●

wet ... Remove carbon or wipe the
spark plugs dry; replace if necessary.
Faulty ignition system ... Ask a Yamaha

●

dealer to inspect.
T.O.R.S. system malfunction ... Discon-

●

nect the carburetor switch connectors
and connect the wire harness connec­tors together to bypass the T.O.R.S.

For MM700
Short circuit in the lighting system, sig-

●

nal system and meter system (except
for the ignition system) ... Disconnect
the relay with the white coupler (not the
black coupler) to activate the ignition
circuit so that the engine can be
started. Ask a Yamaha dealer to
inspect the electrical circuits as soon
as possible.

WARNING

@

●

Before bypassing the T.O.R.S., make
sure that the throttle returns prop­erly to the fully-closed position.

●

The T.O.R.S. is an important safety
device; in the case of a malfunction,
take the snowmobile to a Yamaha
dealer immediately for repair.

@

Relay with the white coupler

1

3. Compression
Insufficient
Loose cylinder head nuts ... Tighten

●

nuts properly.
Worn or damaged gasket ... Replace

●

gasket.
Worn or damaged piston and cylinder

●

... Ask a Yamaha dealer to inspect.

9-1

B. Engine does not turn over with the

recoil starter

1. Seized engine ... Seizure is caused by
poor lubrication, inadequate fuel, or an
air leak—Ask a Yamaha dealer to
inspect.

2. “Hydrolock” occurs when fuel has filled
the crankcase when the vehicle has

been transported. ... Remove the spark

plugs and turn the engine over several
times with the ignition off to expel
excess fuel. Ask a Yamaha dealer to
inspect.

C. Electric starter does not operate or

operates slowly

For VT700

1. Faulty wire connections ... Check con­nections or ask a Yamaha dealer to
inspect.

2. Discharged battery... Check battery
fluid and charge battery.

3. Engine trouble ... Check B above.

F. Engine overheats

1. Insufficient coolant ... Add coolant.

2. Air in cooling system ... Bleed air or ask
a Yamaha dealer to inspect.

3. Leaking coolant ... Ask a Yamaha
dealer to inspect.

G. Snowmobile does not move

1. Malfunctioning V-belt clutch ... Ask a
Yamaha dealer to inspect.

2. Drive track does not move ... Foreign
object is caught in the drive track, or
slide runners have melted to the slide
metal due to lack of lubrication.

3. Tight, loose, or broken drive chain ...
Ask a Yamaha dealer to inspect.

H. V-belt twists

1. Improper V-belt ... Replace with the
correct V-belt.

2. Incorrect V-belt clutch offset ... Ask a
Yamaha dealer to inspect.

3. Loose or broken engine mount ... Ask a
Yamaha dealer to inspect.

D. Engine power is low

1. Faulty spark plugs ... Clean or replace
the spark plugs.

2. Incorrect jetting for altitude or tempera­ture ... Carburetor. Ask a Yamaha
dealer to inspect.

3. Improper fuel flow ... See A.1. above.

4. Incorrect V-belt clutch settings for alti­tude or conditions ... Ask a Yamaha
dealer to inspect.

E. Engine constantly backfires or mis-

fires

1. Faulty spark plugs ... Replace the
spark plugs.

2. Clogged fuel system ... See A.1. above.

3. Malfunctioning T.O.R.S. system ... See
A.2. above.

I. V-belt slips or burns

1. Oily or dirty V-belt or primary and sec­ondary sheave assembly surfaces ...
Clean.

2. Problem with the driveline ... See H
above.

J. Engine does not upshift or down-

shift properly or engages harshly

1. Worn or damaged V-belt ... Replace the
V-belt or ask a Yamaha dealer to
inspect.

2. Incorrect V-belt clutch settings for alti­tude or conditions ... Ask a Yamaha
dealer to inspect.

3. Worn or sticking primary sheave
assembly ... Ask a Yamaha dealer to
inspect.

4. Worn or sticking secondary sheave
assembly ... Ask a Yamaha dealer to
inspect.

9-2

K. Noise or excessive vibration in drive

chain and sprockets

1. Broken V-belt clutch components ...
Ask a Yamaha dealer to inspect.

2. Worn or damaged bearings ... Ask a
Yamaha dealer to inspect.

3. Worn or damaged V-belt with flat spots
... Replace.

4. Worn or damaged idler wheels or
shafts ... Ask a Yamaha dealer to
inspect.

5. Worn or damaged drive track ... Ask a
Yamaha dealer to inspect.

9-3

ESU00252

10-

STORAGE

Long term storage requires some preven­tive procedures to guard against deteriora­tion.

1. Cleaning

Thoroughly clean the snowmobile, inside
and out, to remove the corrosive salts and
acids that can accumulate. Use Yamaha
Mud and Grease Release, or an equivalent
product, to loosen mud, grease, and grime.
Wash with mild soap, then rinse and dry
completely.

2. Lubrication

Lubricate moving parts, suspension link­age, and pivot points. Use the grease or
lubricant specified in the MAINTENANCE
section, or Yamaha Lube-Zall general pur­pose lubricant. Proper lubrication fights
corrosion while it reduces friction.

3. Fuel system preparation

Add Yamaha Fuel Conditioner/Stabilizer, or
an equivalent stabilizer, to the fuel tank to
help prevent fuel oxidation, gum and var­nish deposits, and to inhibit corrosion in
the fuel system and carburetor. In areas
where oxygenated fuel (gasohol) is used,
completely drain the fuel system. Ask a
Yamaha dealer if further information is
needed.

4. Engine

Proper storage of the engine is essential to
prevent costly rust and corrosion damage
to internal engine components. This is
more important in areas where oxygenated
fuel (gasohol) is used, because the alcohol
content in the fuel increases the chance for
water to enter the engine. Use Yamaha
Stor-Rite Fogging Oil, or an equivalent fog­ging oil, to protect both the combustion

chamber and crankshaft from corrosion.
An alternate method is to remove the car­buretor silencer and squirt oil into the car­buretor throats while the engine is running.

CAUTION

@

:

Do not attempt to store the snowmobile
by simply starting the engine occasion­ally during the storage period. This can
cause more harm than good! Moisture
and acids form during combustion
which can actually increase the chance
for corrosion damage during the stor­age period.

@

5. Protection
Apply a coat of wax, such as Yamaha Sili­cone Wax, to painted surfaces. Spray
Yamaha Silicone Spray, or an equivalent
protectant, on the exterior of the engine,
drive track, and on other metal, plastic, and
rubber parts.

6. Battery
For VT700
Remove the battery from the snowmobile
and check the fluid level. Add only distilled
water if necessary. (See the “Battery—
Replenishing the battery fluid” section on
page 8-28 for instructions.) After checking
the fluid level, charge the battery. Store it in
a cool, dry place that is above 0 °C (32 °F),
but less than 30 °C (90 °F). Check the con­dition of the battery with a hydrometer
once a month, and charge it as necessary.

10-1

WARNING

@

Never smoke around the battery

●

while it is being charged. Sparks
may ignite the hydrogen gas created
by the battery.
Never connect or disconnect the

●

battery to the snowmobile while it is
being charged. Sparks may ignite
the hydrogen gas created by the bat­tery.
Make sure that the battery terminals

●

are tight and that the battery vent
tube is properly routed and is
securely attached to the battery.

@

CAUTION

@

:

Do not charge the battery quickly.
Charge the battery for 10 hours at 2.0
amperes.

@

7. Drive track
Loosen the drive track, and block up the
chassis so that the track is suspended
above the ground.

Returning to service after storage

When returning your snowmobile to ser­vice, reinstall the V-belt and adjust the
drive track. Install the battery, and make
sure that the battery vent tube is properly
installed and that there are no kinks in it.
Remove the spark plugs and clean or
replace them if necessary. Perform all
other pre-operation and seasonal mainte­nance checks listed in the periodic mainte­nance chart.

For peak performance, it is recommended
that you have your snowmobile checked
and tuned by a Yamaha dealer. They have
the experience and training to help you get
the maximum performance and use of your
Yamaha snowmobile.

8. V-belt
Remove the V-belt and store separately.

9. Storage
Store the snowmobile in a dry, well-venti­lated place out of direct sunlight. Put a fab­ric cover over the snowmobile, preferably
one that is designed for it. Do not use a
plastic or vinyl cover—condensation could
be trapped underneath which could
increase the chances of rusting.

10-2

ESU00228

R + M

2

11-

ESU00229

SPECIFICATIONS

Dimensions

CS-01E

MM700 / VT700
Overall length 2,990 mm (117.7 in)
Overall width 1,115 mm ( 43.9 in): MM700

1,200 mm ( 47.2 in): VT700

Overall height 1,215 mm ( 47.8 in): MM700

1,330 mm ( 52.4 in): VT700

Dry weight 234 kg ( 516 lb): MM700

257 kg ( 567 lb): VT700

Ski tread 980 mm ( 38.6 in): MM700

1,070 mm ( 42.1 in): VT700

ESU00230

Engine

CS-02E

MM700 / VT700
Type Liquid cooled 2-stroke, 7-port
Cylinder arrangement Parallel 3-cylinder
Displacement 698 cm
Bore × Stroke 70.5 × 59.6 mm (2.78 × 2.35 in)
Idle speed 1,600 ± 100 r/min
Engine oil type YAMALUBE 2-cycle oil
Carburetor type MIKUNI, TM33 × 3
Fuel Unleaded gasoline

3

Pump octane ; 88 or higher

Starting system Manual with recoil starter:

MM700

Electric and manual with recoil starter:

VT700

11-1

ESU00231

Chassis

CS-03E

MM700 / VT700
Drive track and suspension:

Track Molded rubber, fiber glass rod reinforced
Width 381 mm (15.0 in)
Track deflection 20–25 mm (0.79–0.98 in)/

100 N (10 kg, 22 lb): MM700
25–30 mm (0.98–1.18 in)/
100 N (10 kg, 22 lb): VT700

Length on ground 887 mm (34.9 in): MM700

944 mm (37.2 in): VT700
Suspension type Slide Rail Suspension
Drive sprocket Quadruple polyethylene, 8 teeth:

MM700

Quadruple polyethylene, 9 teeth:

VT700

Transmission:

Type Automatic centrifugal engagement, infinite-

ly variable 3.8:1–1:1
Sheave distance Approx. 268.5 mm (10.57 in)
Sheave offset Approx. 15 mm (0.59 in): MM700

Approx. 20 mm (0.79 in): VT700
Engagement speed

Shift speed

∗

∗

Drive chain Silent chain enclosed in oil bath
Reduction ratio 40/21 (1.90): MM700

Fuel tank:

Tank capacity 44.3 L (9.7 lmp gal, 11.7 US gal)

Oil tank:

Tank capacity 3.0 L (2.6 lmp qt, 3.2 US qt)

Approx. 4,700 r/min:MM700

Approx. 3,900 r/min:VT700

Approx. 8,300 r/min

39/22 (1.77): VT700

Subject to change according to elevation settings.

∗

11-2

MM700 / VT700

Brake:

Type Hydraulic disc type (ventilated disc)
Operation Handle lever, left hand operated

Throttle:

Operation Handle lever, right hand operated

ESU00232

Electric

CS-04E

MM700 / VT700
Ignition system DC-CDI
Spark plug Type BR9ES (NGK)

Gap 0.7–0.8 mm (0.028–0.031 in)

Battery Capacity GM18Z-3A/12 V 20A·h: VT700

Maximum charge rate 2.0 Amperes/hr for 10 hrs: VT700
Headlight Bulb × Quantity 12 V, 60/55 W × 2
Tail/brake light Bulb × Quantity 12 V, 8/23 W × 1
Meter light Bulb × Quantity 12 V, 1.7 W × 2
Indicator light Bulb × Quantity 12 V, 1.7 W × 3

11-3

–MEMO–

ESU00233

W/G

G

B/Y

L/W

W/BW/RY/W

L/R

Y/B

Br/W

Y

Lg G/R

B/W

OW Br

Gy B Y/R

W/R

W/G

W

W

W

WIRING DIAGRAM

1-

OGy

BW

E

BW

OGy

(BLACK) (BLACK)

I

I

H

B/W

B

O

O

W

Gy

E

E

E

O

W

Gy

L/W

W/B

O

W

Gy

Br

B/Y

B/W

W/R

W/G

(BLACK)

(WHITE)

W/R

W/G

1

W/G

W

W

W

W/R

I

H

B/W

B

Gy

W/B

L/W

Y/W

E

B

Y/R

B/Y

B/W B/Y

B/W

Br

W W W

H

B/W

W

L/W

W/B

B/R

Y/W

(BLACK) (BLACK)

F

Y

G

Lg

L/R

RUN

IDLE

C

B/Y

B/W

B/W

B/Y

OFF

OPEN

09

OFF

RUN

R/W

B

Br

B

Br

R/W

ON

OFF

8

W W W

R/Y

B/W

B/W

R

START

W/B

B

Ch

B

B

Y/W

Y/W

Y/W

Y/B G/R

Br/W

Ch

B

R/Y

R R

R

2

BR

B

K

B

B

E

B

J

O/B

W/B

B/R

G

O/B

Y

Ch

Y/R

R/W

B

B

R

R

B

3

B

B

R

R

B

3

BrR

B

W

W W

G/BB

R/BG/R

A

R/BG/R

G/BB

(BLACK) (BLACK)

C

D

O/B

O/B

O/B

Y

O/B

L/R

L/R

L/R

L/R

P

B

L/R

D

BL/R

(BLACK)

B

Lg

B

W

Lg

F

R R

B

B

A

A

B

B

F

È

È

R/W

F

R/W R/W

B

R

B

(BLACK)

5

4

(30A)

R

R

RB

R R

6

È

d

Br/W

L

Br/W

L

R

Br

L R

L

SUB-WIRE

HEADLIGHT

O/B

7

G

G

G

É

HARNESS 2

WIRE HARNESS

HARNESS

SUB-WIRE

WIRE HARNESS

LO

Y/R

L

G/R

B

B

(10A)(10A)(20A)

Ê

R

B

R/W

F

R/W

B

R

(BLACK) (BLACK)

È

Y/BL

YG

B

YG

L/W

Y/B

G/RY/L

Y/L

HI

OFF

Y/L

O/B

Y/L

O/B

B

efg

L/R

L/W R/Y

SUB-WIRE

HARNESS 3

WIRE HARNESS

HARNESS

SUB-WIRE

HEADLIGHT

WIRE HARNESS

M

B

B

(BLACK)

Y/L

G/R

(BLACK)

L/R

R/Y

L/W

G

L

R

L

(BLACK) (BLACK)

WIRE HARNESS WIRE HARNESS

É

G/Y

B

O/BL/R

C

B

O/B

L/R

G/Y

R

G/R

G/R

N

L

B

(BLACK)

R

G/R

(BLACK)

S

L/R

OFF

G/B

A

G/BG/B G/B

L

Y/B

B

G/B

G/B

L

Br B

`

L

L

B

L/W

L/W

HI

LO

Lg

b

L/W

L/W

Lg

SUB-WIRE

HARNESS 1

WIRE HARNESS

R

L/R

G/Y

L

G/Y

ON

B

G/B

B

G

U

B

\

]

Y/B Y/BY/B

B

Lg

L/W

c

BG

Y

L/W

Lg

O

(GREEN)(GREEN)

(BLACK)

B

O/B

HARNESS

L/R

G/Y

TAIL/BRAKE

D

B

Y/L

G/Y

BBA

G

Y

LIGHT SUB-WIRE

G/Y

B

O/BL/R

SUB-WIRE

HARNESS 1

B

L

(BLACK)

G/R

(BLACK)

P

L/R

Q

P

P

Br

P

L/R

L/R

L

D

C

G/Y

G/Y

G/Y

G/Y

D

C

L/R G/Y

L/R

L/R

L/R

L/R

B

A

G/R G/R

B

G/R

[

Z

Y

X

L

Y

B

G

G

B

Y

Y

Y G

Y G

B

Lg

B

R

B

G/Y

B

G/Y

B

BCBBB

D

T

B

R/B

Br

Gy

B

R/B

R/B

V

A

R/BR/B

YR/B

B

G/RL

B

R/B

G/R

L

Y

W

BY

G

B

a

A

BBB

a

BY

G

12-1

COLOR CODE

B....................Black

Br ..................Brown

Ch .................Chocolate

G ...................Green

Gy .................Gray

L ....................Blue

Lg..................Light green

O ...................Orange

P....................Pink

R ...................Red

W...................White

Y....................Yellow

B/R................Black/Red

B/W ...............Black/White

B/Y ................Black/Yellow

Br/W ..............Brown/White

G/B................Green/Black

G/R................Green/Red

G/Y................Green/Yellow

L/R ................Blue/Red

L/W................Blue/White

O/B................Orange/Black

R/B................Red/Black

R/W...............Red/White

R/Y................Red/Yellow

W/B ...............White/Black

W/G...............White/Green

W/R...............White/Red

Y/B ................Yellow/Black

Y/L.................Yellow/Blue

Y/R................Yellow/Red

Y/W ...............Yellow/White

DC back buzzer (VT700)RGear position switch (VT700)SBrake light switchTTail/brake lightUFuel senderVOil level switchWSpeedometer XOil level warning indicator lightYCoolant temperature warning lightZHigh beam indicator light[Speedometer light\Tachometer light]Tachometer^Fuel meteraHeadlightbHeadlight beam switchcHeadlight relay (with the black cou-

Q

AC magneto2Rectifier/regulator3Condenser (MM700)4Main fuse (VT700)5Starter relay (VT700)6Battery (VT700)7Starter motor (VT700)8Main switch9Engine stop switch0Throttle switchAGrip warmerBThumb warmerCCarburetor switchDCoolant temperature sensorECDI unitFVariable resistor (thumb warmer)GVariable resistor (grip warmer)HIgnition coilISpark plugJEngine groundKFrame groundLPassenger grip warmer switch

pler)dLoad control relay (with the white cou-

pler)e“IGNITION” fuse (VT700)

“TA I L ” fuse (VT700)

“HEAD” fuse (VT700 )

f

g

(VT700)MResistor (VT700)NPassenger grip warmer (left) (VT700)OPassenger grip warmer (right) (VT700)

1

12-2

MM700ÉMM700ÊVT700

È

Passenger grip warmer relay (VT700)

P

–MEMO–

YAMAHA MOTOR CO., LTD.

PRINTED ON RECYCLED PAPER

PRINTED IN JAPAN

2002.04-0.3×1 CR

(E)