Problem: Spark Absent Or Weak; Problem: Spark Plug Fouled With Carbon; Problem: Spark Plug Electrodes Overheat Or Burn; Problem: Alternator Does Not Charge - Arctic Cat 450 XC 2011 Service Manual

Troubleshooting

Problem: Spark absent or weak

Condition
1. Ignition coil defective
2. Spark plug defective
3. Alternator defective
4. ECU defective
5. Pick-up coil defective

Problem: Spark plug fouled with carbon

Condition
1. Gasoline incorrect
2. Air cleaner element dirty
3. Spark plug incorrect (too cold)
4. Valve seals cracked - missing
5. Oil rings worn - broken

Problem: Spark plug electrodes overheat or burn

Condition
1. Spark plug incorrect (too hot)
2. Engine overheats
3. Spark plug loose

Problem: Alternator does not charge

Condition
1. Lead wires/connections shorted - loose - open
2. Stator coils shorted - grounded - open
3. Regulator/rectifier defective
Problem: Alternator charges, but charging rate is below the specification
Condition
1. Lead wires shorted - open - loose (at terminals)
2. Stator coils grounded - open
3. Regulator/rectifier defective
4. Battery defective
Problem: Alternator overcharges
Condition
1. Internal battery short circuited
2. Regulator/rectifier damaged - defective
3. Regulator/rectifier poorly grounded
Problem: Charging unstable
Condition
1. Lead wire intermittently shorting
2. Alternator internally shorted
3. Regulator/rectifier defective
Problem: Starter button inoperative
Condition
1. Battery charge low
2. Switch contacts defective
3. Starter motor defective
4. Starter relay defective
5. Emergency stop - ignition switch off
6. Wiring connections loose - disconnected
Remedy
1. Replace ignition coil
2. Replace plug
3. Replace magneto
4. Replace ECU
5. Replace pick-up coil
Remedy
1. Change to correct gasoline
2. Clean element
3. Replace plug
4. Replace seals
5. Replace rings
Remedy
1. Replace plug
2. Service cooling system
3. Tighten plug
Remedy
1. Repair - replace - tighten lead wires
2. Replace stator coils
3. Replace regulator/rectifier
Remedy
1. Repair - tighten lead wires
2. Replace stator coils
3. Replace regulator/rectifier
4. Replace battery
Remedy
1. Replace battery
2. Replace regulator/rectifier
3. Clean - tighten ground connection
Remedy
1. Replace lead wire
2. Replace stator coil
3. Replace regulator/rectifier
Remedy
1. Charge - replace battery
2. Replace switch
3. Replace starter motor
4. Replace relay
5. Turn on switches
6. Connect - tighten - repair connections
Manual
Table of Contents
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