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Troubleshooting, Engine and drive train troubleshooting, Engine turns over, fails to start engine backfires – Polaris IQ Turbo LX User Manual

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TROUBLESHOOTING

Engine and Drive Train Troubleshooting

Engine Turns Over, Fails to Start

Engine Backfires

Probable Cause

Solution

Out of fuel

Refuel.

Water is present in fuel

See your dealer.

Old or non-recommended fuel

Replace with fresh recommended fuel.

Fouled or defective spark plugs

Inspect plugs and replace if necessary.

No spark to spark plug

See your dealer.

Water or fuel in crankcase

See your dealer.

Clogged fuel filter

Replace the filter.

Low battery voltage

Recharge the battery to 12.8 VDC.

Poor engine compression

See your dealer.

Mechanical failure

See your dealer.

Probable Cause

Solution

Weak spark from spark plug

Inspect, clean and/or replace spark plugs.

Incorrect spark plug gap or heat range

Set gap to specs or replace plugs.

Old or non-recommended fuel

Replace with fresh recommended fuel.

Mechanical failure

See your dealer.

Loose ignition connections

Check all connections and tighten.

Water present in fuel

Replace with fresh recommended fuel.

Exhaust manifold leak

Inspect and repair, or see your dealer.