2007 YAMAHA TTR125 ignition

6 - 5
–+ELECIGNITION SYSTEM
ENGINE STOP SWITCH INSPECTION
TT-R125/TT-R125LW
1. Inspect:
Engine stop switch conduct
Not continuous while being pushed →
Replace.
Continuous while being freed → Replace.
TT-R125E/TT-R125LWE
1. Inspect:
Engine stop switch conduct
No continuous while being pushed → Replace.
Continuous while being freed → Replace. Tester (+) lead → Black/White lead 1
Tester (–) lead → Black lead 2
B/W
1B
2Tester selec-
tor position
PUSH IN
Ω × 1
FREE
Tester (+) lead → Black lead 1
Tester (–) lead → Black lead 2
B
1B
2Tester selec-
tor position
PUSH IN
Ω × 1
FREE
BB
1
2
EC626002
IGNITION COIL INSPECTION
1. Inspect:
Primary coil resistance
Out of specification → Replace.
Tester (+) lead → Orange lead 1
Tester (–) lead → Black lead 2
Primary coil
resistanceTester selector
position
0.18 ~ 0.28 Ω at
20 ˚C (68 ˚F)Ω × 1

6 - 6
–+ELECIGNITION SYSTEM
2. Inspect:
Secondary coil resistance
Out of specification → Replace.
NOTE:
When inspecting the secondary coil resis-
tance, remove the spark plug cap.Tester (+) lead → Spark plug lead 1
Tester (–) lead → Orange lead 2
Secondary coil
resistanceTester selector
position
6.3 ~ 9.5 kΩ at
20 ˚C (68 ˚F)kΩ × 1
CDI MAGNETO INSPECTION
1. Inspect:
Pickup coil resistance
Out of specification → Replace.
ÅTT-R125/TT-R125LW
ıTT-R125E/TT-R125LWE
Tester (+) lead → Red lead 1
Tester (–) lead → White lead 2
Pickup coil
resistanceTester selector
position
248 ~ 372 Ω at
20 ˚C (68 ˚F)Ω × 100
Å
Br G
RW
12 ı

6 - 7
–+ELEC
2. Inspect:
Source coil resistance
Out of specification → Replace.
ÅTT-R125/TT-R125LW
ıTT-R125E/TT-R125LWE
Tester (+) lead → Brown lead 1
Tester (–) lead → Green lead 2
Source coil
resistanceTester selector
position
688 ~ 1,032 Ω
at 20 ˚C (68 ˚F)Ω × 100
Å
Br G
RW
1
2 ı
IGNITION SYSTEM