Carburetor Heater Inspection - Honda TRX350TM Rancher Service Manual

2000-2003 rancher/rancher 4x4
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LIGHTS/METERS/SWITCHES
CARBURETOR HEATER
INSPECTION
(Except U.S.A. TM model)
Remove the right side cover (page 2-4).
Disconnect the carburetor heater 2P (white)
connector.
Measure the voltage between the Brown/black ( )
and Yellow ( ) wire terminals at the harness side
connectors.
There should be battery voltage with the ignition
switch ON.
If there is no voltage, check for open circuit in
related wires.
If the wires are OK, check as follows:
Measure the resistance between the heater side
connector terminals.
STANDARD:
If the resistance is out of above ranges, replace the
carburetor heater.
INSPECTION (U.S.A. TM model)
Remove the right side cover (page 2-4).
Disconnect the carburetor heater 2P (white)
connector and the air temperature switch 2P
(white) connector.
Check for continuity between the Brown/black
terminals at the harness side connectors.
There should be continuity.
If there is no continuity, check for open circuit in
Brown/black wire.
Measure the voltage between the Black/green ( )
and Yellow ( ) wire terminals at the harness side
connectors.
There should be battery voltage with the ignition
switch ON.
If there is no voltage, check for open circuit in
related wires.
If the wires are OK, check as follows:
Measure the resistance between the heater side
terminals of the heater 2P connector.
STANDARD:
If the resistance is out of above ranges, replace the
carburetor heater.
20-8
13 15
(20°C/68°F)
13 15
(20°C/68°F)
C
C
A
A
R
R
B
B
U
U
R
R
E
E
T
T
H
H
E
E
A
A
T
T
E
E
A
A
I
I
R
R
T
T
E
E
M
M
P
P
E
E
R
R
A
A
T
T
U
U
R
R
T
T
E
E
M
M
P
P
E
E
R
R
A
A
T
T
U
U
R
R
E
E
S
S
W
W
I
I
T
T
C
C
H
H
2
2
P
P
C
C
O
O
N
N
N
N
E
E
C
C
T
T
O
O
R
R
O
O
R
R
H
H
E
E
A
A
T
T
E
E
R
R
R
R
2
2
P
P
C
C
O
O
N
N
N
N
E
E
C
C
T
T
O
O
R
R
E
E
S
S
W
W
I
I
T
T
C
C
H
H

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Irving Louviere
April 18, 2025

Fuel drains out through the drain line

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