Inspection Of Fuel Meter And Gauge; Troubleshooting - Suzuki GS850G Service Manual

Tcmperaturc
Fixcd point
cnmpcnsating bimctal
Necdlc
At hlgh temperalure
Main b~mctal
Wilh rcmpernlurc cornpensarion
(conmnr
porition
of needle)
Even i f the temperature
rises inside the
meter
and
causes
the
main bimetal to
deflect as shown in
the
above drawing,
the
temperature compensating bimetal will
deflect to the
same degree
as the
main
bimetal, in the reverse direction, to keep
the
needle position constant.
V e l tage regulator
Fig. 12-60
The passage of current through the heater
wire
deflects
the
bimetal and causes point
separation. This point separation stops the
current
until the bimetal begins to cool
which causing the point
to
connect again.
A large
amount
of current passes through
the
hearer
wire
whcn the supply voltagc
is
high,
causing the birneral to deflect
quickly, and the points to separate. This
is
illustrated E n the following drawing which
shows that the average current is constant.
a
Gaugeunit
The displacement
of
the float changes the
position of
the contact plate which
slides
on a
wire wound
resistor causing
the
resistance value to vary.
Wire wound resistor
Float arm
Fig. 12-62
INSPECTION OF FUEL METER AND
GAUGE
The fuel
meter
is enclosed within the
tachometer assembly.
The f o l l o w i n g
table
i s used
Tor
troubleshooting.
gasoline I t )