Yamaha Royal Star Tour Deluxe XVZ13CTT Supplementary Service Manual - Elec
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ELEC
CARBURETOR HEATING SYSTEM
EAS00822
YES
NO
YES
NO
5. Carburetor heater relay
• Remove the carburetor heater relay from
the wire harness.
• Connect the pocket tester (
Ω × 1) and bat-
tery (DC 12 V) to the carburetor heater
relay coupler as shown.
Positive tester probe
→
brown 1
Negative tester probe
→
black/white 2
Continuity
Positive battery terminal
→
brown 3
Negative battery terminal
→
sky blue 4 No conti-
nuity
Positive tester probe
→
brown 1
Negative tester probe
→
black/white 2
• Is the carburetor heater relay OK?
Replace the carbure-
tor heater relay.
2
1
4
3
Br
Sb
Br
B/W
6. Thermo switch 2
• Remove the thermo switch 2 from the wire
harness.
• Connect the pocket tester to the (
Ω × 1) to
the thermo switch 2 as shown.
Positive tester probe
→ black 1
Negative tester probe
→ black 2
• Check the thermo switch 2 for continuity at
the temperatures indicated below.
È COOLING DOWN
É HEATING UP
• Does the thermo switch 2 operate prop-
erly?
Replace the thermo
switch 2.
B
B
1
2