KYMCO Agility 125 Service Manual page 164

15
. IGNITION SYSTEM
TROUBLESHOOTING
High voltage too low
• Weak battery or low engine speed
• Loose ignition system connection
• Faulty ignition coil
• Faulty CDI unit
• Faulty pulser coil
Intermittent high voltage
• Faulty ignition switch
• Poorly connected CDI unit coupler
• Poorly connected or broken CDI ground wire
• Faulty pulser coil
• Loose high tension wire connection
• Faulty CDI unit
Normal high voltage but no spark at plug
• Faulty spark plug
• Faulty spark plug cap
No high voltage
• Faulty ignition switch
• Dead battery or faulty regulator/rectifier
• Faulty charging circuit
• Faulty ignition coil
• Faulty CDI unit
No or intermittent high voltage
• Faulty ignition coil
• Weak battery
• Faulty charging system
AGILITY 125
15-2