Service Repair Manual

CARBURETOR
INSPECTION
General Description
Check the following and repair or replace parts if necessary.
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Check the fuel paths (jets) and air paths (jets or orifices) for
clogging. If clogged, wash thoroughly with cleaning solvent
or detergent and blow by compressed air. Do not use metal
wire or other metal pieces.
Check the diaphragms for damage and cracks.
Check that the needle valve operates lightly. If the valve is
hard to slide or is binding, repair or replace. If there is
overflow, poor valve to seat contact is suspected. Check
thoroughly.
Check the fuel inlet filter (located above the needle valve)
for clogging and damage.
Check the float operation. Check the float and lever for
deformation and damage and replace if necessary.
Check operation of the throttle valve, chock valve and link.
If they do not operate lightly, wash well and apply engine
oil sparingly to their shaft.
Check the float chamber cover and main body for damage
and cracks.
Slow Cut Solenoid Valve (SCSV)
1. Apply battery voltage directly to the slow cut solenoid valve
terminals.
2. Check that the valve operates with a click.
3. Using a circuit tester, check that there is no continuity
between the solenoid valve body and terminals.