Yamaha YP250 Service Manual page 248

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 the
bottom of the heated vessel.
More than 98_C
Thermo switch "ON".
A
B
Thermo switch "OFF".
7. Wiring connection
S Check the connection of the entire cooling
system.
Refer to "CIRCUIT DIAGRAM" section.
105"3_C
CORRECT
COOLING SYSTEM
OUT OF SPECIFICATION
Replace the thermo switch.
POOR CONNECTION
Correct.
8-40
ELEC