Circuit Diagram - Yamaha XVZ13TF 1999 Service Manual

6. Thermo switch
S Remove the thermo switch from the thermo
switch plate.
S Connect the pocket tester to the (Ω
the thermo switch as shown.
Tester positive probe ! black/white
Tester negative probe ! black/yellow
B / W
B / Y
S Check the thermo switch for continuity at the
temperatures indicated below.
20_C
COOL DOWN
A
HEAT UP
B
S Does the thermo switch operated properly?
YES
CARBURETOR HEATING SYSTEM
1) to
1
2
26_C
NO
Replace the thermo
switch.
EAS00825
The following procedure applies to all of the
carburetor heating elements.
7. Carburetor heater
S Remove the carburetor heating element
from the carburetor.
S Connect the pocket tester to the carburetor
heating element as shown.
Tester positive probe !
Tester negative probe !
S Measure the carburetor heater resistance.
Carburetor heating element
resistance
6 X 12 Ω at 20_C
S Is the carburetor heating element OK?
YES
EAS00826
8. Wiring
S Check the entire carburetor heating sys-
tem's wiring.
Refer to "CIRCUIT DIAGRAM".
S Is the carburetor heating system's wiring
properly connected and without defects?
8-50
ELEC
heating element
heating element body
NO
Replace the carbure-
tor heating element.
NO
Properly connect or
repair the carburetor
heating system's wir-
ing.
1
2