KYMCO Agility 125 Service Manual page 163

15
. IGNITION SYSTEM
SERVICE INFORMATION ...................... 15-1
TROUBLESHOOTING ............................. 15-2
CDI UNIT INSPECTION .......................... 15-3
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• Check the ignition system according to the sequence specified in the Troubleshooting. ( 15-2)
• The ignition system adopts CDI unit and the ignition timing cannot be adjusted.
• If the timing is incorrect, inspect the CDI unit and A.C. generator and replace any faulty parts.
Inspect the CDI unit with a CDI tester
• Loose connector and poor wire connection are the main causes of faulty ignition system. Check
each connector before operation.
• Use of spark plug with improper heat range is the main cause of poor engine performance.
• The inspections in this section are focused on maximum voltage. The inspection of ignition coil
resistance is also described in this section.
• Inspect the ignition switch according to the continuity table specified in page 17-3.
• Inspect the spark plug referring to Section 3.
• Remove the A.C. generator and pulser coil referring to Section 14.
SPECIFICATIONS
Spark plug
Spark plug gap
Ignition timing
Ignition coil resistance (20℃)
Pulser coil resistance (20℃)
Ignition coil primary side max. voltage
Pulser coil max. voltage
TESTING INSTRUMENT
Kowa Electric Tester
or commercially available electric tester with resistance over 10MΩ/CDV
15-1
IGNITION COIL ..................................... 15-4
PULSER COIL ........................................ 15-5
Item
Standard type
Hot type
Cold type
"F" mark
Full advance
Primary coil
Secondary with plug cap
coil
without plug cap 3～5KΩ
AGILITY 125
Standard
(NGK) C7HSA
(NGK) C6HSA
(NGK) C8HSA
0.6～0.7mm
13° BTDC /1,700rpm±100RPM
28° BTDC /4,000rpm±100RPM
0.1～1.0Ω
7～12KΩ
40～300Ω
12V min.
2.1V min.