Preparing Documents - KEEWAY FACT 50 4T Maintenance Manual

2. Ignition System
Preparing documents--------------2.1 CDI Group ----------------2.4
Failure diagnosis --------------2.2
Ignition system check----------2.3

2.1 Preparing documents

Work Instructions
1. Check the ignition system following the sequence listed in the table of failure diagnosis.
2. This ignition system is an electronically and automatically angling device. It is solidified in the CDI group and
you don't have to adjust the ignition time.
3. Check the ignition system following the sequence listed in the table of failure diagnosis.
4. Do not make CDI of the ignition system fall down or hang down or hammer it with strong force (primary causes
for failure). Pay special attention during disassembly.
5. Failure of the ignition system is mostly caused by poor contact of the socket. Check whether each connector is in
good condition.
6. Check whether the heat value used for the spark plug is proper. If not, the engine may work abnormally or the
spark plug may be burnt.
7. Check in this chapter is based on the maximum voltage. It also refers to check on the impedance of the ignition
coil.
8. Check the main switch according to the conduction table.
9. Remove the magnetor and the stator according to instructions.
Preparing principles
Spark plug
recommended
Spark plug gap
Ignition coil
impedance （2
Secondary coil
0 ）
Impedance of trigger （20 ）
Measure the maximum primary voltage of the ignition coil
Charging coil voltage
Tools
Attachments to the Maximum Voltage Table
Multimeter
Item
Standard
Hot type
Cold type
Primary coil
With plug cap
Without plug cap
Trigger voltage
Ignition coil --------------2.5
Trigger --------------------2.6
63
Standard value
C5HSA(NGK)
C6HSA(NGK)
C7HSA(NGK)
0.6-0.7mm
0.6Ω±10％
5-11KΩ
0.5-5.5KΩ
100-500Ω
95-400V
Above 1.7V
95-400V