Ignition Timing; Troubleshooting - Arctic Cat 2014 400 ATV Service Manual

3. Set the tester to DC VOLTS; then turn the ignition
switch to the ON position and move the shift lever to
the R (reverse) position. The meter must show bat-
tery voltage.

NOTE: If the meter does not show battery voltage,
use the following procedure to troubleshoot.
4. Remove the black tester lead from the brown/laven-
der wire and connect to a suitable ground.
A. If the meter shows battery voltage, troubleshoot
the gear shift position switch connector or the
gear shift position switch.

Troubleshooting

Problem: Spark absent or weak
Condition
1. Ignition coil defective
2. Spark plug defective
3. Alternator defective
4. CDI unit 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
6. Mixture too rich
7. Idling RPM too high
Problem: Spark plug electrodes overheat or burn
Condition
1. Spark plug incorrect (too hot)
2. Engine overheats
3. Spark plug loose
4. Mixture too lean
Problem: Alternator does not charge
Condition
1. Stator 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. Stator wires shorted - open - loose (at terminals)
2. Stator coils grounded - open
3. Regulator/rectifier defective
4. Battery defective
5. Electrolyte low
98
B. If the meter does not show battery voltage, inspect
the LIGHTS fuse, ignition switch, or the main
wiring harness.

Ignition Timing

The ignition timing cannot be adjusted; however, verify-
ing ignition timing can aid in troubleshooting other com-
ponents. To verify engine timing, see Periodic
Maintenance -Ignition Timing.
Remedy
1. Replace ignition coil
2. Replace plug
3. Replace stator coil
4. Replace CDI unit
5. Replace stator coil
Remedy
1. Change to correct gasoline
2. Clean element
3. Replace plug
4. Replace seals
5. Replace rings
6. Replace jets with correct size
7. Adjust carburetor
Remedy
1. Replace plug
2. Service oil filter
3. Tighten plug
4. Replace jets with correct size
Remedy
1. Repair - replace - tighten stator wires
2. Replace stator coils
3. Replace regulator/rectifier
Remedy
1. Repair - tighten Stator wires
2. Replace stator coils
3. Replace regulator/rectifier
4. Replace battery
5. Add distilled water