Fuel Gauge; Fuel Gauge Inspection; Fuel Unit Inspection - Honda Motorcycle Service Manual

LIGHTSIMETERSISWITCHES
FUEL GAUGE
Fuel unit resistance changes in relation to the level of the fuel
unit float. The fuel gauge needle is moved by the varying
amperage that flows through the fuel gauge.
There are t w o types of fuel gauges: The 'Return type" where
the needle returns t o "Empty" when the ignition switch is
turned OFF, and the "Stop type" where the needle stays i n
position when the ignition switch is turned OFF.
Check the fuel gauge if its needle does not move.
INSPECTION
1. If the fuel unit connector has 2 terminals, short the gauge
terminals with a jumper wire.
If the unit connector has 3 terminals, short the gauge side
yellow/white terminal and the green terminal with a jumper
wire.
Turn the ignition switch ON and check the gauge needle
1
Needle does not move
+
Needle moves
$
Check the fuel unlt
t
2. Check for continuity between the unit and fuel gauge
I
I
Continuity No cpnt~nulty
t . .
I
+
Broken wire between the
unit the gauge
3. Check for voltage at the black or blacklbrown (positive
power line) and ground wire of the fuel gauge.
i
NO voltage
I
+
Voltage
t
. .
t
Broken posktlve power
.
Faulty fuel gauge
line
FUEL UNlT INSPECTION
Refer t o the Model Specific manual for the fuel unit removal1
installation and inspection specifications.
1. Connect the fuel unit connector
Turn the ignition switch ON.
Move the float up and down to be sure that the fuel gauge
needle moves to
"F"
and "RES".
If the needle does not move, go to step 2.
2 TERMINAL UNIT MAIN
FUSE FUSE
SENDING UNlT
3
TERMITAL
UNIT
MAlN
1
FUSE FUSE
--
IGNITION
SWITCH
1
FUEL GAUGE
SENDING UNlT
/FUEL GAUGE
FLOAT
. .
FUEL
--
Date of Issue: March, 1995
O
HONDA MOTOR CO..LTD.