Snowmobile Polaris Trail RMK (2010 year). Manual - part 28

113

TROUBLESHOOTING

Engine Troubleshooting

Problem

Probable Cause

Solution

Noise in drive 

system

Broken drive clutch 

components

• SEE YOUR DEALER.

Bearing failure/ chain-

case, jackshaft, or front 

drive shaft

• SEE YOUR DEALER.

Drive belt surface flat 

spots

• Inspect and replace if necessary.

Drive chain loose or 

worn, sprocket teeth 

broken

• Inspect and adjust or replace.

Poor low RPM 

performance

Worn drive belt

• Inspect and replace if necessary.

Excessive belt/sheave 

clearance

• SEE YOUR DEALER.

Loose torque stop

• Inspect and adjust.

Sticky clutch

• SEE YOUR DEALER.

Engine doesn’t 

start (electric 

start models)

Wire connections

• SEE YOUR DEALER.

Engine doesn’t 

turn

Seized engine

• SEE YOUR DEALER. Seizure is a 

result of poor lubrication, inadequate 

fuel supply, broken parts, or improper 

cooling.

Hydrostatic lock 

• Fuel may have entered crankcase 

while vehicle was standing or being 

transported. SEE YOUR DEALER to 

correct cause. Drain plug(s) are 

located on lower crankcase for emer-

gency draining.

114

TROUBLESHOOTING

Engine Troubleshooting

Problem

Probable Cause

Solution

Engine turns 

but fails to start

Faulty ignition

• Remove spark plug(s) and replace 

with new plug(s). If engine still fails 

to start, check for spark; if no spark 

SEE YOUR DEALER.

No fuel to engine

• Make sure the fuel valve is ON. 

Check tank level and fill up with cor-

rect fuel.

• Ice in fuel line, filter, or pump. On the 

standard Polaris carburetor, the choke 

will not function with the throttle 

depressed. See second item under 

“Probable Cause” of “Engine contin-

ually backfires”.

Flooded engine (normal 

situation caused by too 

much choking)

• Hold throttle open, crank engine sev-

eral times (may be necessary to 

change plug(s), however, the plug(s) 

may operate satisfactorily when 

dried).

Poor engine compression • Running too lean a mixture (too small 

a main jet will cause seizure resulting 

in loss of power). SEE YOUR 

DEALER. This indicates a major 

engine problem that must be repaired 

before engine is run.

Engine lacks 

power

Fouled or defective 

spark plug

• Change and test operation.

Fuel filter (loss of high 

RPM power)

• Check fuel filter flow. Disconnect 

hose and drain about 1/2 cup. Fuel 

flow should be steady and encompass 

the entire diameter of fuel line. If not, 

replace filter.

Incorrect clutching

• SEE YOUR DEALER.

Carburetor and fuel 

pump

• There’s no adjustment to change 

power output. SEE YOUR DEALER.

Engine continu-

ally backfires

Faulty plug(s)

• Change plug(s)

Carburetor

• Dirt or ice in fuel system. (Deicer 

should be added to non-ethanol fuel 

at all times for assurance against fuel 

line icing.)

Engine requires 

more than nor-

mal pulls to 

start

Poor gasoline or not 

enough fuel getting to 

engine

• Replace with fresh winter fuel.

115

WARRANTY

Service And Warranty Information

Obtaining Service and Warranty Assistance

Read and understand the service data and the Polaris warranty informa-

tion contained in this manual. Contact your Polaris dealer for replace-

ment parts, service or warranty. Your dealer receives frequent updates 

on changes, modifications and tips on snowmobile maintenance, which 

may supersede information contained in this manual. Your dealer is also 

familiar with Polaris policies and procedures and will be happy to assist 

you.
When contacting us about parts, service, or warranty, always provide the 

following information:

1. Serial number
2. Model number
3. Dealer name
4. Date of purchase
5. Details of trouble experienced
6. Length of time and conditions of operation
7. Previous correspondence

Use the page provided near the front of your Owner’s Manual to record 

the identification numbers of your snowmobile and its engine.

Polaris Customer Service

United States: 1-888-704-5290
Canada: 1-204-925-7100

116

WARRANTY

Service And Warranty Information

Polaris Anti-Theft System

The Polaris anti-theft system (PATS) monitoring program is designed to 

aid owners of registered snowmobiles in recovery of stolen machines.

Administration

1. Polaris snowmobile owner reports theft.

A. In addition to notifying the proper law enforcement officials, the 

owner must call Polaris Customer Service.

B. Owners must provide their name, address, telephone number and 

the model and serial number of stolen machines.

2. Polaris warranty will provide all dealerships with a monthly updated 

list of all stolen units to further monitor thefts.

3. Polaris warranty will aid in notifying the proper owner when a unit 

is recovered.