Oil Level Indicator Inspection; Timer Type Indicator Theory - Honda Motorcycle Service Manual

lNSPECTlON
IGNITION
SWITCH
.
Oil level indicator comes o n w h e n t h e o i l i n t h e tank
reaches a certain level. (Oil level is not below spec.)
1 .
Disconnect the wires from the oil level switch and turn
the ianition switch ON.
I
1 I
switch
I
SWITCH
-
4
lndicator 11ghts
t
Indicator does not light
t
+
.
Shorted wire between
.
Faulty oil level switch
the indicator and oil level
Oil level indicator does not come on with no oil or a low
oil level in the tank.
1
@
[ & ! - l
L----2
-
g F i j J
-
INDICATOR OIL LEVEL - -
1. Disconnect the wires from the oil level switch and con-
nect a jumper wire between the wire terminals. Turn the
ignition switch ON and check the indicator.
t
lndicator does not come
t
lndicator comes on
on
I
I
I
+
.
Faulty oil level switch
.
Poor wire connection
2. Disconnect the wires from the oil level switch and check
for voltage between the wire and ground.
t
No vpltage
t
Voltage
t t
Broken wire between the
.
Faulty oil level switch
oil level indicator and
.
Poor oil level switch wire
level switch
Burnt bulb
conneciton
TIMER TYPE INDICATOR THEORY
A timer type indicator has a bulb check function t o check the
oil level indicator for proper operation
When the ignition switch is turned ON, current flows through
the exciter coil to the condenser, generates an electromag-
netic force at the exciter coil and closes the reed switch circuit.
Current flows from the reed switch through the resitor R2 t o
the oil level indicator and turns it on. When the condensar is
fully charged, current flow through the exciter coil to the
condenser decreases and, consequently, electromagnetic
force at the coil decreases. The reed switch opens and the oil
level indicator turns off.
When the ignition switch is turned OFF, current stored in the
condenser flows through the exciter coil and resistors R1 and
R2 to the oil level indicator. The oil level indicator does not
come in this case.
i & m
INDICATOR
L----'
-
OIL LEVEL SWITCH
IGNITION
INDICATOR
on for
a
few seconds
--
:H (OFF)
r.-
1
INDICATOR
(goes off)
Date of Issue: March.1995
@ I
HONDA MOTOR CO.,LTD.
25-3