Yamaha YP250 Service Manual page 254

:
YP******
5. Thermo switch
S Disconnect the thermo switch from the ra-
diator.
S Connect the pocket tester (
thermo switch 1 .
S Immerse the thermo switch in the coolant
.
2
S Check the thermo switch for continuity.
NOTE:
Note temperatures while heating the water
with the temperature gauge
S Handle the thermo switch with special
care.
Never subject it to strong shocks or allow
it to be dropped. Should it be dropped, it
must be replaced.
S Do not touch the thermo switch to bot-
tom of the heated vessel.
More than 68_C
Thermo switch on.
A
B
Thermo switch off.
1) to the
.
3
75"3_C
CORRECT
:
AUTO CHOKE SYSTEM
OUT OF SPECIFICATION
Replace the thermo switch.
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