Yamaha TT-R125ER Manuel D'atelier Du Proprietaire page 544

IGNITION SYSTEM
ENGINE STOP SWITCH INSPECTION
1. Inspect:
1
2
B B
Tester (+) lead → Black lead 1
Tester (–) lead → Black lead 2
No continuous while being pushed → Replace.
Continuous while being free → Replace.
EC626002
IGNITION COIL INSPECTION
1. Inspect:
Tester (+) lead → Orange lead 1
Tester (–) lead → Black lead 2
2. Inspect:
Tester (+) lead → Spark plug lead 1
Tester (–) lead → Orange lead 2
NOTE:
When inspecting the secondary coil resis-
tance, remove the spark plug cap.
6 - 4
Engine stop switch continuity
G
B
1
PUSH IN
FREE
Primary coil resistance
G
Out of specification → Replace.
Primary coil
resistance
0.18 ~ 0.28 Ω at
20 ˚C (68 ˚F)
Secondary coil resistance
G
Out of specification → Replace.
Secondary coil
resistance
6.3 ~ 9.5 kΩ at
20 ˚C (68 ˚F)
– +
ELEC
Tester selec-
B
tor position
2
Ω × 1
Tester selector
position
Ω × 1
Tester selector
position
kΩ × 1