Troubleshooting - Arctic Cat 2014 XC 450 Service Manual

Troubleshooting

Problem: Spark absent or weak
Condition
1. Ignition coil defective
2. Spark plug defective
3. Alternator defective
4. ECM defective
5. Crankshaft Position Sensor 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 - open
2. Stator coil shorted - grounded - open
3. Regulator/rectifier defective
Problem: Alternator charges, but charging rate is below the specification
Condition
1. Stator coil wires shorted - open - connector dirty
2. Stator coil 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. Stator coil 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
Problem: Battery "sulfation" (Acidic white powdery substance or spots on surfaces of cell plates)
Condition
1. Charging rate too low - too high
2. Battery run-down - damaged
3. Battery sulfided
100
Remedy
1. Replace ignition coil
2. Replace plug
3. Replace stator coil assembly
4. Replace ECM
5. Replace stator coil assembly
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 lead wires
2. Replace stator coil
3. Replace regulator/rectifier
Remedy
1. Repair wires - clean connector
2. Replace stator coil
3. Replace regulator/rectifier
4. Replace battery
Remedy
1. Replace battery
2. Replace regulator/rectifier
3. Clean - tighten ground connection
Remedy
1. Repair shorted 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
Remedy
1. Repair charging system
2. Replace battery
3. Replace battery