Sym MB10A7-A series Service Manual page 192

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Ignition System
Ignition circuit
Main Switch
G
Ignition coil inspection
Remove the front seat and fuel tank.
Measure the resistance between the terminals
of the primary winding.
Standard value：1.2Ω±15% (20ºC)
Remove the cap from the spark plug and
measure the resistance between terminals of
secondary winding.
Standard value：
6.6KΩ±15% (without cap 20ºC)
10.7KΩ±15% (with cap 20ºC)
Exciter coil inspection
Disconnect the AC. Generator 6 pin coupler.
Measure the resistance between the terminal
Black / Red and terminal Green.
Standard value：780Ω±10%
Caution
Coil does not need to be removed from
●
the engine before inspection.
To this chapter contents
B / W
L/Y
AC. Generator
12. Electrical System
C.D.I.
B / Y
G
Spark plug
Primary winding
White
Green
Blue / Yellow
G
Black / Red
Yellow
12-11