Snowmobile Polaris 120. Instruction - part 2

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POLARIS and POLARIS THE WAY OUT are registered trademarks of Polaris Indus-

tries Inc.
Copyright 2007 Polaris Sales Inc. All information contained within this publication is 

based on the latest product information at the time of publication. Due to constant 

improvements in the design and quality of production components, some minor discrep-

ancies may result between the actual vehicle and the information presented in this publi-

cation. Depictions and/or procedures in this publication are intended for reference use 

only. No liability can be accepted for omissions or inaccuracies. Any reprinting or reuse 

of the depictions and/or procedures contained within, whether whole or in part, is 

expressly prohibited. 
Printed in U.S.A.
2008 120 Snowmobile Owner's Manual 
P/N 9921100

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TABLE OF CONTENTS

Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

Important Notes for Owners and Drivers. . . . . . . . . . . . 6

Preservation of the Environment. . . . . . . . . . . . . . . . . . 7

Vehicle Identification Numbers . . . . . . . . . . . . . . . . . . . 9

Safety  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10

Youth Section . . . . . . . . . . . . . . . . . . . . . . . . . .  14

Know Your Snowmobile  . . . . . . . . . . . . . . . . . . . . . . . 14

Pre-Ride Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Riding Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Adult Section  . . . . . . . . . . . . . . . . . . . . . . . . . .  25

Pre-Ride Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Operation Warnings  . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Component Identification. . . . . . . . . . . . . . . . . . . . . . . 40

Break-In Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Emission Control Information  . . . . . . . . . . . . . . . . . . . 48

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .  79

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . .  80

Polaris Products. . . . . . . . . . . . . . . . . . . . . . . .  82

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  83

Maintenance Log . . . . . . . . . . . . . . . . . . . . . . .  94

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  96

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INTRODUCTION

Important Notes for Owners and Drivers

After reading this manual, store it in the snowmobile for convenient ref-

erence. It should remain with the snowmobile when the snowmobile is 

sold.
You and your dealer must complete the registration form included with 

your snowmobile and forward it to us. This completed form is necessary 

to ensure warranty coverage.

NOTE:

The illustrations and photos used in this manual are general represen-

tations. Your model may differ. 

PARENTS: Do not allow anyone under the age of six (6) to operate this 

machine. Review the information in this manual with any child who 

may be operating the snowmobile. It is up to you to teach any operator 

the proper and safe way to ride a snowmobile. You must set boundaries 

and adhere to them, keeping the operator's safety foremost in your mind. 

Never allow a child to operate this machine without adult supervision.
These units are not designed for adult use. Serious damage to the vehicle 

may occur if the maximum rider weight capacity is exceeded. Never 

exceed the maximum rider weight capacity. See page 80.
CHILDREN: Before you ride your new Polaris snowmobile, there are 

some important things that you need to know. Your safety and the safety 

of others is the most important thing to think about at all times. As the 

driver of the snowmobile, you must learn how to keep yourself and 

those around you safe while you're riding. 
Pay attention when you see this symbol:

IMPORTANT

Parents should sit down with their children and read the Youth Section with 

them before allowing them to use this snowmobile. Parents must also read the 

Adult Section before allowing their children to ride this snowmobile.

This is the safety alert symbol. When you see this symbol on your 

snowmobile or in this manual it means PAY ATTENTION because you 

could die or be seriously hurt if you don't follow the instructions.

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INTRODUCTION

Preservation of the Environment

Teach your child to drive their snowmobile with consideration for the 

protection and preservation of the environment.

Noise

One of the most publicized subjects with regard to snowmobiles is 

noise. The Society of Automotive Engineers (SAE), which is the stan-

dard-setting body for snowmobiles, has recommended that snowmobiles 

conform to prescribed sound levels. This Polaris snowmobile has been 

engineered to conform to these SAE standards.
In order to be meaningful, all regulations require the cooperation of the 

snowmobile owner. Muffling systems, designed to reduce noise levels, 

should not be altered or removed. Snowmobile drivers must be aware 

that they have a public responsibility to operate their snowmobiles with 

concern for others. As a snowmobile operator you may not realize the 

sound of your snowmobile may annoy non-snowmobilers. We are 

attempting to do our part through the manufacture of quieter machines, 

and we also ask your help in the effort to further reduce the impact of 

noise.

Air Pollution

As a part of Polaris' plan for the snowmobile's compatibility within the 

environment, our engineers are investigating ways to reduce emission 

levels of engines. We expect our efforts to lead to the reduction of 

potential air pollution.
The four-stroke engine used in this snowmobile produces less exhaust 

emissions and reduces noise, as well.
In addition to technological research, we also suggest that governmental 

agencies, manufacturers, distributors, dealers, ecologists, and other 

interested parties work together to develop data on environmental top-

ics. We will continue to participate in this type of study so that someday 

we may find the answers to these difficult issues.