Kymco MO FILLY 50LX Service Manual - chap 15 (imp accensione)

15. IGNITION SYSTEM

15-0

FILLY LX 50

15

Pulser Coil

Ignition Switch

CDI Unit

A.C. Generator

CDI Unit

15

Ignition
Switch

G

Spark Plug

Battery

BYW

G

L/Y

B/Y

Fuse

Pulser Coil

Ignition Coil

Spark Plug

15. IGNITION SYSTEM

15-1

FILLY LX 50

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

Item

Standard

Standard type

(NGK) C7HSA

Spark plug

Hot type

(NGK) C6HSA

Cold type

(NGK) C8HSA

Spark plug gap

0.6_ 0.7mm

Ignition timing

“F” mark
Full advance

13° BTDC
/1,700rpm±100RPM
28° BTDC
/4,000rpm±100RPM

Primary coil

0.1_ 1.0W

Ignition coil resistance

Secondary

with plug cap

7_ 12KW

coil

without plug cap

3_ 5KW

Pulser coil resistance (20℃ )

40_ 300W

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 10MW/CDV

SERVICE INFORMATION

......................

15-1 IGNITION COIL

.....................................

15-4

TROUBLESHOOTING

............................

15-2 PULSER COIL

.........................................

15-5

CDI UNIT INSPECTION

.........................

15-3