Sym Mio 50 Service Manual page 191

16. Electrical Equipment
CDI. Unit
Removal
Remove the battery cover.
Remove the CDI.
Inspection
Disconnect the coupler from the CDI unit.
Make the following inspection at each terminal of
the harness side coupler.
ITEM
Main Switch
Main Switch
Exciter Coil
Pulse Generator
Primary
Ignition Coil
Secondary
16-12
To this chapter contents
Measure at:
Black/white-green
Black/ Blue -green
Black/Red-Green
Blue/Yellow-green
Black/yellow-green
Green-high voltage
cable -w/o Cap
Green-high voltage
cable - w/ Cap
Standard (at 20¢ J )
HU10U/W
Continuity as main switch OFF
Continuity (battery voltage) as master switch ON
400 ~800Ω
50 ~200Ω
0.21Ω±10%
3~5KΩ
7~12KΩ
CDI. Unit
CDI. Unit
HU05U
115Ω±20%
602Ω±20%
0.31Ω±15%
4.0 KΩ±15%