Yamaha TZ250M1 Owner's Service Manual page 248

IGNITION SYSTEM
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:
• Couplers and leads connection
Rust/ Dust/ Looseness/Short-circuit ≥
Repair or replace.
EC62A000
%
MAIN SWITCH INSPECTION
1. Inspect:
• Main switch conduct
Tester (+) lead ≥
≥ Brown lead 2 2
Tester (-) lead ≥
u
1 1
RUN
OFF
Continuous while the main switch is moved to
"OFF" ≥ Replace.
Not continuous while the main switch is moved
to "RUN" ≥ 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)
6-4
ELEC
≥ Red lead 1 1
R Br Tester selector
2 2
position
Ω X X 1
≥ Orange (Gray) lead 1 1
≥ Black lead 2 2
Tester selector
position
Ω X X 1