Yamaha Scorpio - Page 220

7 - 12
– +
ELEC
IGNITION SYSTEM
C0NTINUITY
7.Source coil resistance
●
Disconnect the CDI magneto coupler from
the wire harness.
●
Connect the pocket tester (
Ω ×
100) to the
source coil.
Tester (+) lead
→
Brown
1
terminal
Tester (–) lead
→
Green
2
terminal
*
MEETS
SPECIFICATION
3
CDI magneto
●
Measure the source coil resistance.
Source coil resistance:
688 ~ 1,032
Ω
at 20°C
OUT OF SPECIFICATION
Replace source coil.
8.Pickup coil resistance
●
Disconnect the CDI magneto coupler from
the wire harness.
●
Connect the pocket tester (
Ω ×
100) to the
pickup coil.
Tester (+) lead
→
Red
1
terminal
Tester (–) lead
→
White
2
terminal
MEETS
SPECIFICATION
3
CDI magneto
●
Measure the pickup coil resistance.
Pickup coil resistance:
248 ~ 372
Ω
at 20°C
OUT OF SPECIFICATION
Replace pickup coil.
CORRECT
9.Wiring connection
●
Check the entire ignitions system for con-
nections.
Refer to the “WIRING DIAGRAM” section.
CDI unit is faulty. Replace it.
POOR CONNECTION
Correct.