Ignition Coil Inspection - Yamaha YZ125N1 Service Manual

IGNITION SYSTEM
EC626002

IGNITION COIL INSPECTION

1. Inspect:
9Primary coil resistance
Out of specification
Tester (+) lead Orange lead 1
Tester (–) lead Black lead 2
Primary coil
resistance
0.14~0.20Ω at
20°C (68°F)
2. Inspect:
9Secondary coil resistance
Out of specification
Tester (+) lead Spark plug lead 1
Tester (–) lead Orange lead 2
Secondary coil
resistance
6.7~10.1kΩ at
20°C (68°F)
NOTE:
When inspecting the secondary coil resistance,
remove the spark plug cap.
6-4
ELEC
Replace.
Tester selector
position
Ω × 1
Replace.
Tester selector
position
kΩ × 1