Service manual

Page 141 of 151
17. ELECTRICAL SYSTEM
17.1 TROUBLESHOOTING
• Engine Starts But Dies
o Improper Ignition Timing
o Faulty Spark Plug
• No Spark At Plug
o Engine Stop Switch At “Off” Position
o Gearshift Is Not At Neutral Position
o Faulty Ignition Coil
o Faulty Generator
o Faulty CDI Unit
o Poorly Connected:
 Between CDI And Ignition Coil
 Between CDI And Engine Stop Switch
 Between Ignition Coil And Spark Plug
 Between Generator And CDI Unit
• Engine Starts But Runs Poorly
o Ignition Primary Circuit
 Faulty Generator
 Faulty CDI Unit
 Faulty Alternator Exciter Coil
 Loose Contact Terminals
 Faulty Ignition Coil
o Ignition Secondary Circuit
 Faulty Plug
 Loose Contact Spark Plug Wire
 Improper Ignition Timing
 Faulty Generator
 Faulty CDI Unit
• Charging System Failure
o Faulty Generator
o Faulty CDI Unit
o Loose, Broken, Or Shorted Wire
o Faulty regulator
o Faulty Ignition Switch
• Engine Intermittent Power
o Loose
Battery Connection
o Loose Charging System Connection
• Starter Motor Inoperable
o Battery Short
o Faulty Ignition Switch
o Loose Or Disconnected Wire
• Engine Does Not Run
o Faulty Ignition System
o Engine Problems
o Faulty Engine Stop Switch
• Headlight Inoperable
o Switch Not Set To “ON” Position
o Headlight Bulb Broken Or Needs Replacing
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