Ignition System - Yamaha YZ250(P)/LC Owner's Service Manual

IGNITION SYSTEM

EC626002
IGNITION COIL INSPECTION
1. Inspect:
9
Primary coil resistance
Out of specification ¡ Replace.
Tester (+) lead ¡ Orange lead 1
Tester (–) lead ¡ Black lead 2
Primary coil
resistance
0.20~0.30Ω at
20°C (68°F)
2. Inspect:
9
Secondary coil resistance
Out of specification ¡ Replace.
Tester (+) lead ¡ Spark plug lead 1
Tester (–) lead ¡ Orange lead 2
Secondary coil
resistance
9.5~14.3kΩ at
20°C (68°F)
NOTE:
When inspecting the secondary coil resistance,
remove the spark plug cap.
EC627011
CDI MAGNETO INSPECTION
1. Inspect:
9
Pick-up coil resistance
Out of specification ¡ Replace.
Tester (+) lead ¡White/ Red lead 1
Tester (–) lead ¡White/ Blue lead 2
Pick–up coil
resistance
248~372Ω at
20°C (68°F)
6-4
ELEC
Tester selector
position
Ω × 1
Tester selector
position
kΩ × 1
Tester selector
position
Ω × 100