Troubleshooting - KYMCO People Service Manual

17. IGNITION SYSTEM
SERVICE INFORMATION
GENERAL INSTRUCTIONS
x Check the ignition system according to the sequence specified in the Troubleshooting. ( Ö 1-28)
x The ignition system adopts ignition unit and the ignition timing cannot be adjusted.
x If the timing is incorrect, inspect the ignition unit and A.C. generator and replace any faulty parts.
Inspect the ignition unit with a ignition unit tester
x Loose connector and poor wire connection are the main causes of faulty ignition system. Check
each connector before operation.
x Use of spark plug with improper heat range is the main cause of poor engine performance.
x The inspections in this section are focused on maximum voltage. The inspection of ignition coil
resistance is also described in this section.
x Inspect the ignition switch according to the continuity table specified in page 19-3.
x Inspect the spark plug referring to Section 3.
x Remove the A.C. generator and pulser coil referring to Section 10.
SPECIFICATIONS
Spark plug
Spark plug gap
Ignition timing
Ignition coil resistance (20
)
Pulser coil resistance (20 )
Exciter coil resistance (20 )
Ignition coil primary side max. voltage
Pulser coil max. voltage
Exciter coil max. voltage
TESTING INSTRUMENT
Electric tester: YF-3501

TROUBLESHOOTING

No spark at plug
x Faulty spark plug
x Poorly connected, broken or shorted wire
x Faulty ignition switch
x Faulty ignition coil
x Faulty ignition unit
x Faulty A.C. generator
Item
Standard type
"F" mark
Full advance
Primary coil
Secondary without plug cap
coil with plug cap
PEOPLE/PEOPLE S 250
Standard
NGK DPR7EA9
0.7mm
repeatedly
3.6 4.1:
14K:
19K:
105 110:
1.8 2.1:
14V
1.6V
14V
Engine starts but turns poorly
x Ignition primary circuit
—Faulty ignition coil
—Poorly connected wire or connector
—Poorly contacted ignition switch
x Ignition secondary circuit
—Faulty ignition coil
—Faulty spark plug
—Faulty high-tension wire
—Poorly insulated plug cap
x Improper ignition timing
—Faulty A.C. generator
—Stator not installed properly
—Faulty ignition unit
17-2