Service Manual

CARBURETOR (BEGINNING SPEC G)
Carburetor
Replacement
Other than replacing the carburetor main fuel jet
(fixed-type) with the optional high-altitude jet (Fig-
ure
&), fuel mixture adjustments should not be at-
tempted.
Nor should the carburetor be overhauled.
Instead, a malfunctioning carburetor should
be re-
placed. Before replacing a carburetor, however,
make certain
1) that all other necessary engine and
generator adjustments and repairs have been
per-
formed and 2) that the carburetor is actually mal-
functioning (see Engine Troubleshooting). LEVER STOP SCREW
To remove the carburetor, remove the air cleaner,
disconnect the fuel line and choke and throttle link-
ages and unbolt the carburetor from the intake man-
ifold. When mounting the carburetor always use a
new gasket. Readjust the choke and throttle cables
and engine speed as instructed in the engine
or
equipment Operator's Manual.
Carburetor High-Altitude Jet (Optional)
If the engine is operated at an altitude above 5,000
feet (1,524 metres), it is recommended that the car-
buretor main fuel jet
be replaced with the optional
high-altitude jet (which has a slightly smaller
ori-
fice).
To avoid slipping and gouging the
main
fuel jet, use a screwdrlver with a 5/16 inch
(8 mm) wide blade.
PLUG
PUMP OVER IDLE MIXTURE NEEDLE
CHOKE
REMOVE
CAP FOR
MAIN FUEL JET
ACCESS TO MAIN JET
(shown enlarged)
FIGURE 4a. CARBURETOR