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Troubleshooting, Engine and drive train troubleshooting, Engine runs irregularly, stops or loses power – Polaris FST IQ Touring User Manual

Page 159

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156

TROUBLESHOOTING

Engine and Drive Train Troubleshooting

Engine Runs Irregularly, Stops or Loses Power

Probable Cause

Solution

Engine Management System RPM

Reduction Mode is activated

See causes on page 38.

Low battery voltage

Recharge the battery to 12.8 VDC.

Water is present in fuel

See your dealer.

Poor quality or low octane fuel

Replace with fresh recommended fuel.

Loose ignition connections

Check all connections and tighten.

Incorrect spark plug gap or heat range

Set gap to specs or replace plug.

Fouled or defective spark plug

Inspect, clean and/or replace spark plug.

Kinked or plugged fuel vent line

Inspect and replace.

Clogged air filter

Inspect and clean or replace.

Air flow through intake is too warm (FST

only)

Boost is limited until cooler air flows

through the intake.

Engine management system failure

See your dealer.

Engine overheating

Stop and cool the engine. See the “Engine

Overheating” troubleshooting section on

page 157.

Fuel in crankcase

See your dealer.

Drive clutch binding

See your dealer.

Incorrect clutching

See your dealer.

Driven clutch malfunction

See your dealer.

Worn drive belt

Replace with the recommended belt.

Excessive belt/sheave clearance

See your dealer.

Loose torque stop

Inspect and adjust.

Other mechanical failure

See your dealer.