Yamaha TT-R125(R), Owner'S Service Manual

Page: 506 / 510

6 - 5
– +
ELEC
IGNITION SYSTEM
CDI MAGNETO INSPECTION
1. Inspect:
●
Pickup coil resistance
Out of specification
→
Replace.
Tester (+) lead
→
Red lead 1
Tester (–) lead
→
White lead 2
Pickup coil
resistance
Tester selector
position
248 ~ 372
Ω
at
20 ˚C (68 ˚F)
Ω ×
100
2. Inspect:
●
Charging coil resistance
Out of specification
→
Replace.
Tester (+) lead
→
Brown lead 1
Tester (–) lead
→
Green lead 2
Charging coil
resistance
Tester selector
position
688 ~ 1,032
Ω
at 20 ˚C (68 ˚F)
Ω ×
100
EC628000
CDI UNIT INSPECTION
Check all electrical components. If no fault is
found, replace the CDI unit. Then check the
electrical components again.