Section 03
TROUBLESHOOTING
Subsection 05
(ELECTRICAL SYSTEM)
03-05-6
SYMPTOM
ENGINES DOES NOT START — NO SPARK AT SPARK PLUG.
CONDITION
AT ENGINE CRANKING.
Test/Inspection
1. Verify spark plug condition.
a. Defective, improperly set, worn-out, fouled.
Identify source of problem and correct. Replace spark plugs.
2. Verify spark plug cap resistance with an ohmmeter.
a. Defective part.
Replace cap.
3. Verify if problem originated from electrical system wiring harness and/or
accessories and/or ignition cut-out switches by unplugging the 4-wire
connectors between the magneto/generator and the vehicle wiring harness.
Check condition of connectors.
a. 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.
a. Defective coil. Corroded connector terminals.
Replace defective coil. Clean terminals and apply silicone dielectric grease.
5. Verify condition of ignition coil.
a. Mechanically damaged part. Vibration problem. Electrically damaged part.
Tighten mounting screws. Replace ignition coil.
6. Verify condition of ignition generator coils.
a. Mechanically damaged part. Vibration problem. Electrically damaged part.
Tighten mounting screws. Replace coils.
7. Verify CDI (Capacitor Discharge Ignition) module.
a. Mechanically damaged part. Vibration problem. Electrically damaged part.
Tighten mounting screws. Replace CDI module, retest and verify ignition timing.
SYMPTOM
ENGINE STALLS.
CONDITION
AT LOW SPEED.
Test/Inspection
1. Verify items 4, 5 and 6 above.
SYMPTOM
IRREGULAR ENGINE SPEED.
CONDITION
AT HIGH SPEED.
Test/Inspection
1. Verify items 4, 5 and 6 above.
CONDITION
AT LOW SPEED.
Test/Inspection
1. Verify items 4 and 5 above and trigger coil/flywheel protrusion air
gap.
a. Air gap too large.
Readjust air
gap.
Summary of Contents for Formula 500 1998
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Page 358: ...SKANDIC WT SWT ANNEX 1 ...
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Page 361: ...SKANDIC WT LC ANNEX 2 ...
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Page 364: ...MX Z440 ANNEX 3 ...
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Page 369: ...MX Z 500 583 670 ANNEX 4 ...
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Page 374: ...FORMULA Z 583 670 ANNEX 5 ...
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Page 380: ...FORMULA 500 DL 583 DL ANNEX 6 ...
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Page 386: ...FORMULA 500 SUMMIT 500 583 670 ANNEX 7 ...
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Page 392: ...GRAND TOURING 500 583 ANNEX 8 ...
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