Polaris TRACTOR Sportsman 570 6X6 (2018 year). Manual - part 35

143

TROUBLESHOOTING

Engine Does Not Rotate

Engine Rotates, Fails to Start

Engine Backfires

Possible Cause

Solution

Low battery voltage

Recharge the battery to 12.8 VDC

Loose battery connections

Check all connections and tighten

Loose solenoid connections

Check all connections and tighten

Possible Cause

Solution

Out of fuel

Refuel

Clogged fuel filter

Replace the filter

Water is present in fuel

Drain the fuel system and refuel

Old or non-recommended fuel

Replace with fresh recommended fuel

Fouled or defective spark plug(s)

Inspect plugs and replace if necessary

No spark to spark plug

Inspect plugs, verify stop switch is on

Water or fuel in crankcase

Immediately service is required. Your 

POLARIS dealer can assist.

Low battery voltage

Recharge the battery to 12.8 VDC

Mechanical failure

Your POLARIS dealer can assist.

Possible Cause

Solution

Weak spark from spark plug

Inspect, clean and/or replace spark 

plug(s)

Incorrect spark plug gap or heat range

Set gap to specs or replace plugs

Old or non-recommended fuel
Loose ignition connections

Check all connections and tighten

Water present in fuel

Replace with fresh recommended fuel

Incorrectly installed spark plug wires

Your POLARIS dealer can assist.

Incorrect ignition timing

Your POLARIS dealer can assist.

Mechanical failure

Your POLARIS dealer can assist.

144

TROUBLESHOOTING

Engine Pings or Knocks

Engine Runs Irregularly, Stalls or Misfires

Possible Cause

Solution

Poor quality or low octane fuel

Replace with recommended fuel

Incorrect ignition timing

Your POLARIS dealer can assist.

Incorrect spark plug gap or heat range

Set gap to specs or replace plugs

Possible Cause

Solution

Fouled or defective spark plug(s)

Inspect, clean and/or replace spark 

plug(s)

Worn or defective spark plug wires

Your POLARIS dealer can assist.

Incorrect spark plug gap or heat range

Set gap to specs or replace plugs

Loose ignition connections

Check all connections and tighten

Water present in fuel

Replace with new fuel

Low battery voltage

Recharge battery to 12.8 VDC

Kinked or plugged fuel tank vent line

Inspect and replace

Incorrect fuel

Replace with recommended fuel

Clogged air filter

Inspect and clean or replace

Reverse speed limiter malfunction

Your POLARIS dealer can assist.

Other mechanical failure

Your POLARIS dealer can assist.

Possible Lean Fuel Cause

Solution

Low or contaminated fuel

Add or change fuel, clean the fuel system

Low octane fuel

Replace with recommended fuel

Clogged fuel filter

Replace filter

Kinked or plugged fuel vent line

Inspect and replace (if equipped)

Possible Rich Fuel Cause

Solution

Fuel is very high octane

Replace with lower octane fuel

Stopping/starting without adequate 

warm-up

Allow engine to warm up before operat-

ing and/or stopping

Incorrect fuel

Replace with recommended fuel

Clogged air filter

Inspect and clean or replace

145

TROUBLESHOOTING

Engine Stops or Loses Power

Engine Overheating

Possible Cause

Solution

Out of fuel

Refuel, cycle key to ON position three 

times for 5 seconds each, then start

Kinked or plugged fuel vent line

Inspect and replace (if equipped)

Water is present in fuel

Replace with fresh recommended fuel

Old or non-recommended fuel

Replace with fresh recommended fuel

Fouled or defective spark plug(s)

Inspect, clean and/or replace spark 

plug(s)

Worn or defective spark plug wires

Your POLARIS dealer can assist.

Incorrect spark plug gap or heat range

Set gap to specs or replace plug

Loose ignition connections

Check all connections and tighten

Low battery voltage

Recharge the battery to 12.8 VDC

Clogged air filter

Inspect and clean or replace

Reverse speed limiter malfunction

Your POLARIS dealer can assist.

Other mechanical failure

Your POLARIS dealer can assist.

Overheated engine

Clean radiator screen and core, clean 

engine exterior. Your POLARIS dealer 

can assist.

Possible Cause

Solution

Debris lodged in screen

Remove and clean the screen. Pull on the 

top portion of the screen, then remove the 

lower portion.

Plugged Radiator

Use a garden hose to flush any debris 

from the radiator fins. NOTE: High 

pressure washers can deform the radiator 

fins and reduce cooling efficiency.

146

WARRANTY

Limited Warranty

POLARIS Industries Inc., 2100 Highway 55, Medina, MN 55340 (POLARIS) gives a 

TWO YEAR LIMITED WARRANTY on all components of your POLARIS vehicle 

against defects in material or workmanship. POLARIS further warrants that the spark 

arrester in this product will meet the efficiency requirements of USFS standard 5100-1C 

for at least 1000 hours when subjected to normal use and when maintenance and 

installation are in accordance with POLARIS recommendations.
This warranty covers parts and labor charges for repair or replacement of defective parts 

and begins on the date of purchase by the original retail purchaser. This warranty is 

transferable to another owner during the warranty period through a POLARIS dealer, 

but any such transfer will not extend the original term of the warranty. The duration of 

this warranty may vary by international region based upon local laws and regulations.

Registration

At the time of sale, the Warranty Registration Form must be completed by your dealer 

and submitted to POLARIS within ten days of purchase. Upon receipt of this 

registration, POLARIS will record the registration for warranty. No verification of 

registration will be sent to the purchaser as the copy of the Warranty Registration Form 

will be your proof of warranty coverage. If you have not signed the original registration 

and received the customer copy, please contact your dealer immediately. NO 

WARRANTY COVERAGE WILL BE ALLOWED UNLESS YOUR VEHICLE IS 

REGISTERED WITH POLARIS. Initial dealer preparation and set-up of your vehicle is 

very important in ensuring trouble-free operation. Purchasing a machine in the crate or 

without proper dealer set-up will void your warranty coverage.

Warranty Coverage And Exclusions:
Limitations Of Warranties And Remedies

This POLARIS limited warranty excludes any failures that are not caused by a defect in 

material or workmanship. THIS WARRANTY DOES NOT COVER CLAIMS OF 

DEFECTIVE DESIGN. This warranty also does not cover acts of God, accidental 

damage, normal wear and tear, abuse or improper handling. This warranty also does not 

cover any vehicle, component, or part that has been altered structurally, modified, 

neglected, improperly maintained or used for racing, competition or purposes other than 

for which it was designed. 
This warranty excludes damages or failures resulting from improper lubrication; 

improper engine timing; improper fuel; surface imperfections caused by external stress, 

heat, cold or contamination; operator error or abuse; improper component alignment, 

tension, adjustment or altitude compensation; snow, water, dirt or other foreign 

substance ingestion/contamination; improper maintenance; modified components; use 

of aftermarket or unapproved components, accessories, or attachments; unauthorized 

repairs; or repairs made after the warranty period expires or by an unauthorized repair 

center.