Yamaha TZ250M1 Owner's Service Manual page 257

SOLENOID VALVE SYSTEM
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:
• Couplers and leads connection
Rust/ Dust/ Looseness/Short-circuit ≥
Repair or replace.
EC652020
SOLENOID VALVE OPERATION
1. Disconnect the fuel pump and servomotor
coupler to prevent the fuel pump and ser-
vomotor operating.
2. Inspect:
• Solenoid valve 1
Click when the main switch is moved to
"RUN" ≥ OK
NOTE:
Before checking the solenoid valve, disconnect
the other solenoid valve lead.
EC653002
SOLENOID VALVE COIL INSPECTION
%
1. Inspect:
• Solenoid valve coil resistance
Out of specification ≥ Replace.
Tester (+) lead ≥
Tester (–) lead ≥
?
52.0~63.6 Ω at
6-13
ELEC
≥ Yellow lead 1 1
≥ White lead 2 2
Solenoid Tester selector
resistance position
Ω X X 10
20˚C (68˚F)