FUEL AND LUBRICATION SYSTEM 4-11
NOTE:
The apparent fuel level measured in the level gauge is higher
than the actual level in the float chamber because of meniscus
effect. (Meniscus is approximately 1 mm.)
CARBURETOR HEATER INSPECTION
• Disconnect the carburetor heater lead wires.
• Connect the positive
+ terminal of a 12 V battery to the termi-
nal of the carburetor heater and the battery negative
- termi-
nal to the terminal.
• Check that the heater section
A is heated in 5 minutes after
the battery has been connected.
• Measure the resistance between the terminals.
% 09900-25008: Multi-circuit tester
$ Carburetor heater resistance: 12 – 18 Ω
ΩΩ
Ω
CARBURETOR THERMO-SWITCH INSPECTION
• Cool the thermo-switch
1 with ice water and check for conti-
nuity.
% 09900-25008: Multi-circuit tester
$ Thermo-switch continuity: Below 8 – 14 °C Yes
Above 13 – 25 °C No
THROTTLE POSITION SENSOR INSPECTION
Measure the resistance between the terminals as shown in the
illustration.
$ Throttle position sensor resistance: Approx. 5 kΩ
ΩΩ
Ω
NOTE:
When performing this test, it is not necessary to remove the
throttle position sensor.
Datum point
Fuel level
in gauge
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