KYMCO 125 MOVIE S INJECTION, Manual

Page: 173 / 213

15
. IGNITION SYSTEM
15-1
SERVICE INFORMATION
GENERAL INSTRUCTIONS
•
Check the ignition system according to the sequence specified in the Troubleshooting. (
!
1-28)
•
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 20-3.
•
Inspect the spark plug referring to Section 3.
•
Remove the A.C. generator and pulser coil referring to Section 10.
SPECIFICATIONS
Item Standard
Standard type C7HSA(NGK)
Spark plug Hot type C6HSA(NGK)
Cold type C8HSA(NGK)
Spark plug gap 0.6
_
0.7mm
Ignition timing
“F” mark
Full advance 13
∞
BTDC/1,700
±
100rpm
27
∞
BTDC/5,000
±
100rpm
Primary coil 0.1
_
1.0
W
Ignition coil resistance
(20
℃
)
Secondary with plug cap 7
_
12K
W
coil
without plug cap 3
_
5K
W
Pulser coil resistance (20
℃
) 40
_
300
W
Ignition coil primary side max. voltage 12V min.
Pulser coil max. voltage 2.1V min.
TESTING INSTRUMENT
Kowa Electric Tester
or commercially available electric tester with resistance over 10M
W
/CDV
SERVICE INFORMATION...................... 15-1 IGNITION COIL .....................................15-4
TROUBLESHOOTING ............................ 15-2 PULSER COIL .........................................15-6
CDI UNIT INSPECTION ......................... 15-3