Yamaha TZ125M1 Owner's Service Manual page 228

IGNITION SYSTEM
EC625002
%
"ENGINE STOP" BUTTON INSPECTION
1. Inspect:
• "ENGINE STOP" button conduct
Tester (+) lead ≥
Tester (–) lead ≥
u
B/W
1 1
PUSH IN
FREE
Not continuous while being pushed ≥ Replace.
Continuous while being freed ≥ Replace.
EC626002
IGNITION COIL INSPECTION
% 1. Inspect:
• Primary coil resistance
Out of specification ≥ Replace.
Tester (+) lead ≥
Tester (–) lead ≥
?
Primary coil
resistance
0.14~0.18 Ω at
20˚C (68˚F)
%
2. Inspect:
• Secondary coil resistance
Out of specification ≥ Replace.
Tester (+) lead ≥
Tester (–) lead ≥
?
Secondary coil
resistance
5.0~7.4 kΩ at
20˚C (68˚F)
NOTE:
When inspecting the secondary coil resis-
tance, remove the spark plug cap.
6-4
ELEC
≥ Black/White lead 1 1
≥ Black lead 2 2
B Tester selector
2 2
position
Ω X X 1
≥ Gray lead 1 1
≥ Black lead 2 2
Tester selector
position
Ω X X 1
≥ Spark plug lead 1 1
≥ Black lead 2 2
Tester selector
position
kΩ X X 1