Ski-Doo FORMULA III, Shop Manual

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Section 03 TROUBLESHOOTING
Sub-Section 04 (ELECTRICAL SYSTEM)
03-04-1
ELECTRICAL SYSTEM 4
The following chart is provided to help in diagnosing the probable source of troubles. It should be used
as a guideline. Some causes or corrections may not apply to a specific model.
SYMPTOM STARTER DOES NOT TURN.
CONDITION NORMAL USE.
Test / Inspection 1. Check fuse.
a. Burnt fuse.
Check wiring condition and replace fuse.
2. Check continuity of starter switch contact points.
a. Poor contact of starter switch contact points.
Repair or replace switch.
3. Check continuity between starter switch and solenoid.
a. Open circuit between starter switch and solenoid switch.
Repair.
SYMPTOM STARTER TURNS ; BUT DOES NOT CRANK THE ENGINE.
CONDITION NORMAL USE.
Test / Inspection 1. Check battery capacity.
a. Shorted battery cell(s).
Replace.
2. Check battery charge.
a. Weak battery.
Recharge.
3. Check wire connection.
a. Inadequate connection (too much resistance).
Clean and reconnect.
4. Check solenoid switch contact disc.
a. Burnt or poor contact of solenoid switch contact disc.
Replace solenoid switch.
5. Check continuity of solenoid switch pull-in winding.
a. Open circuit of solenoid switch pull-in winding.
Replace solenoid switch.
6. Check continuity of solenoid switch hold-in winding.
a. Open circuit of solenoid switch hold-in winding.
Replace solenoid switch.
7. Check brushes.
a. Poor contact of brushes.
Replace brushes.
8. Check commutator.
a. Burnt commutator.
Turn commutator in lathe.