Generic Trigger SM 50ccm User Manual

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6 Ignition system
Preparation data ---------------------- 6.1 Ignition coil -------------------- 6.5
Fault diagnosis ----------------------- 6.2 Trigger -------------------------- 6.6
Ignition system inspection --------- 6.3 Charge coil --------------------- 6.7
CDI group ---------------------------- 6.4
6.1 Preparation data
Matters needing attention in operation
1. Inspect the ignition system in accordance with the order stipulated in the fault diagnosis table.
2. The ignition system is an electronic auto-advance device integrated in the CDI group, therefore the ignition
time needs no adjustment.
3. Inspect the ignition system in accordance with the order stipulated in the fault diagnosis table.
4.Take particular care in disassembly that the CDI group of ignition system should not fall off and drop down
or should not stricken with might（which is the main cause of fault）
5. Bad socket contact is the main cause of the ignition system fault, so inspect whether the joint of each part is
in poor contact or not.
6. Inspect whether the spark plug is utilized at a proper thermal value. Improper spark plug may lead to
unsmooth operation of engine or burn-out of the spark plug.
7. Inspection in the chapter is based on explanation of peak voltage and the judgment whether the resistance
value of ignition coil is OK or not according to records after the inspection.
8. Inspection of the main switch should be performed in accordance with the conduction table.
9. The disassembly of the alternator and stator should be conducted in accordance with the disassembly
explanation.
Preparation reference
Item Standard value
Standard C5HSA(NGK)
Hard plug C6HSA(NGK)
Recommended
spark plug
Soft plug C7HSA(NGK)
Spark plug gap 0.5-0.7mm
Primary coil 0.4Ω（+/-）10％
with plug cover 8-11KΩ
resistance
value of
ignition coil
（20）
Secondary
coil
without
plug cover 4.5-5.5KΩ
resistance value of the trigger（20） 100-200Ω
measured peak voltage of ignition coil at one go 95-400V
Trigger voltage 1.7V or above
Tools
Accessory of peak voltage meter
Avometer

Generic Trigger SM 50ccm Specifications

General

Brand	Generic
Model	Trigger SM 50ccm
Category	Motorcycle
Language	English