KYMCO AK 550 Service Manual page 272

9.Electrical Systems
AK 550
• Check the battery condition before performing any inspection that requires
proper battery voltage.
• A continuity test can be made with the switches installed on the scooter.
• Route the wires and cables properly after servicing each component.
TROUBLESHOOTING
Lights do not come on when ignition switch is "ON"
• Burned bulb
• Faulty switch
• Poorly connected, broken or shorted wire
Temperature gauge does not register correctly
• Faulty temperature gauge
• Faulty thermosensor
• Broken or shorted wire between the temperature gauge and thermosensor
Fuel gauge does not work or shows wrong figures
• Faulty fuel gauge
• Faulty fuel unit
• Poorly connected wire between fuel gauge and fuel unit
• Fuse burned out
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