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3-6 DISASSEMBLY, REASSEMBLY, INSPECTION, AND MAINTENANCE
Carburetor
Carburetor with Fuel Cutoff Valve
To prevent after-burns that occur in the form of combustion in the
muffler when the engine is stopped, the float chamber of this carburetor
is provided with a solenoid-actuated fuel cutoff valve.
When the engine switch is turned to the STOP position, the solenoid
operates the fuel shut off solenoid valve to stop the flow of the fuel that
is supplied to the main jet.
When the engine switch is turned to the START or RUN position, the
fuel shut off solenoid valve opens automatically to supply the fuel.
Inspect the fuel shut off solenoid valve as follows:
•
Remove the fuel shut off solenoid valve by turning it counterclockwise.
•
Keep the tip of the fuel shut off solenoid valve pushed 1 to 2 mm,
and connect 12 V DC current as shown in the diagram.
•
If the fuel shut off solenoid valve does not retract when the power is
connected, the solenoid is defective. In this case, the fuel shut off
solenoid valve must be replaced.
NOTE
To enable the shut off solenoid valve to retract, the tip of the shut
off solenoid valve must be pushed slightly.
A: Shut off Solenoid Valve
B: Solenoid
A wiring diagram for the carburetor with a fuel shut off solenoid valve
is shown on the right.
A: Engine
B: Spark Plug
C: Ignition Coil
D: ACD
E: Igniter (separate type)
F: Carburetor
G: Fuel Shut off Solenoid Valve
H: Key Switch
I: Regulator
J: Fuse
K: Battery
M: Starter Motor