CHAPTER 3B ENGINE 50cc/80cc ATV SERVICE MANUAL09.0
CHAPTER 3B ENGINE PAGE 3B - 72 -
Test the secondary coil resistance from spark plug cap
negative terminals, the standard value of which should be
7-9kΩ(with cap) and 3-4kΩ(without cap).
Coil test using after market spark tester.
Perform the following inspection in accordance with the
operating instructions in the Manual.
1. Set the ignition coil tester switch in 12V and connect
the tester to the ignition coil.
2. Turn the switch to the ON position to check spark
frequency from the inspection door.
● In good condition: Sparking continuously
● In faulty condition: Sparking abnormally
3.11.5 MAGNETO
Pickup Coil Inspection
This test is to be conducted with the stator mounted in
the engine.
Remove the cover.
Disconnect the magneto.
Test the pickup coil resistance between the blue/yellow
and the green lead terminals, whose standard value is
80-160Ω.
Dismounting the magneto.
Charging Coil Inspection
Test the charging coil resistance between the black/red
and the green lead terminals, whose standard value is
300-400Ω.
Spark Advance Angle Inspection
Since CDI is used, there is no need to adjust the timing
advance.
If the spark advance is abnormal, inspect CDI, pickup coil
or magneto. Replace if necessary.
Remove timing lid.
After the engine is warmed up, check the spark advance
angle by the spark timing lamp. It is proper for ‘’F’’ to
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