Yamaha Motor YZ250 N/LC 2001 Manuel D'atelier Du Proprietaire page 498

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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
0.20~0.30Ω 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
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:
9Pick-up coil resistance
Out of specification
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
Replace.
Tester selector
position
Ω × 1
Replace.
Tester selector
position
kΩ × 1
Replace.
Tester selector
position
Ω × 100

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