Ski-Doo Ski Doo MX Z 2005 [914/1429] Cdi mpem module does not work

Ski-Doo Ski Doo MX Z 2005 [914/1429] Cdi mpem module does not work
Section 02 TROUBLESHOOTING GUIDE
Subsection 05 (ELECTRICAL SYSTEM)
Symptom: ENGINE DOES NOT START NO SPARK AT SPARK PLUG. (AT ENGINE CRANK-
ING.)
(contd)
3. Verify if problem originated from electrical system wiring harness and/or accessories
and/or ignition cut-out switches by unplugging the 3-wire connectors between the
magneto/generator and the vehicle wiring harness. Check condition of connectors.
- Heating, rotating or sharp part in contact with harness. Improper harness routing. Defective
switch(es). Corroded connector terminals. Replace or repair damaged wires. Reroute where
necessary. Replace defective switch(es). Clean terminals and apply silicone dielectric grease.
4. Verify trigger coil resistance with an ohmmeter and connector condition.
- Defective coil. Corroded connector terminals. Replace defective coil. Clean terminals and apply
silicone dielectric grease.
5. Verify condition of ignition coil.
- Mechanically damaged part. Vibration problem. Electrically damaged part. Tighten mounting
screws. Replace ignition coil.
6. Verify condition of ignition generator coils.
- Mechanically damaged part. Vibration problem. Electrically damaged part. Tighten mounting
screws. Replace coils.
7. Verify MPEM.
- Mechanically damaged part. Vibration problem. Electrically damaged part. Tighten mounting
screws. Replace MPEM, retest and verify ignition timing.
Symptom: CDI/MPEM MODULE DOES NOT WORK.
1. Check that high tension coil wires do not touch any metal parts.
- Short circuit. Isolate and reroute wires.
Symptom: ENGINE STALLS (AT LOW SPEED).
1. Verify items 4, 5 and 6 above.
Symptom: IRREGULAR ENGINE SPEED (AT HIGH SPEED).
1. Verify items 4, 5 and 6 above.
Symptom: IRREGULAR ENGINE SPEED (AT LOW SPEED).
1. Verify items 4 and 5 above and trigger coil/flywheel protrusion air gap.
- Air gap too large. Readjust air gap.
Symptom: ENGINE IS MISFIRING ERRATIC SPARK AT SPARK PLUG. (RIDING ON WET
SNOW.)
1. Verify if spark plug wires and/or spark plug cap seals are sealing out moisture.
- Defective wires and/or seals. Replace defective part.
2. Verify if ignition system wiring harness connectors are in good condition and/or are sealing
out moisture.
- Loose connectors, corroded terminals or defective parts. Clean terminals and apply silicone di-
electric grease. Replace defective parts.
38 mmr2005-008

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