1982 AND LATER SERVICE INFORMATION
a. Make sure the fuel level is well above
the warning point.
b. Check for worn wires on the warning
circuit shorting to the frame or other
c. Check the charging system output.
d. If all the items above are normal, unplug
self-checking unit. If the problem
disappears, the self-checking unit is
defective and must be replaced. If the
disconnected, check again for wiring
shorts. If none are found, the fuel level
sender is probably shorting internally
and must be replaced.
c. If battery voltage is reaching the
self-checking unit and the known good
self-checking unit is defective and must
2. If the warning light does not come on
when fuel level is known to be low:
a. Make sure the warning light comes on
when the ignition switch is first turned
ON. If it does not, see Step 1.
b. Disconnect the 2-pin connector from the
fuel level sender. Connect a voltmeter
positive lead to the greedwhite wire
terminal on the harness side of the
connector and the voltmeter negative
lead to the blacWyellow wire terminal
on the harness side of the connector.
Turn the ignition switch ON. If the
meter does not read battery voltage, the
wiring harness is defective. If the meter
does read battery voltage, the sender is
defective and must be replaced.
3. If the warning light stays on when fuel
level is known to be high:
a. Remove the right-hand side cover and
disconnect the 3-pin connector from the
b. Turn the ignition ON.
c. If the light still goes on, the fuel level
sender is defective and must be
4. If the warning light flickers irregularly:
FUEL AND OIL LEVEL
(KZ550-F1 AND MI)
This system monitors the level of fuel in
the fuel tank and the level of oil in the engine.
The complete system consists of a fuel level
sensor in the fuel tank, an oil level sensor in
the engine, two instrument panel warning
lights and an electronic self-checker to check
for blown bulb filaments.
When the ignition switch is turned ON, the
self-checker turns on both warning lights and
then turns them off after 2-5 seconds. If a
warning light stays on after the checking time,
there is a low fuel or oil level. If the system
does not operate properly, check battery
condition and charge and make sure all
system wiring connections are clean and tight.
If the trouble still exists, troubleshoot as
1. If a warning light does not come on for
about 2-5 seconds after the ignition switch is
a. Replace the bulb.
b. Raise the seat and disconnect the
connector from the self-chechng unit
(Figure 54). Connect a test wire between
the greedwhite and blacWyellow wires
(fuel warning system) or between the
yellow/blue and bluelred wires (oil
warning system). Turn the ignition
switch ON. If the warning light does not
come on, inspect the wiring leads and
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