Service Manual

NEEDLE BEND
TANG HERE
BEND FLOAT ARM
HERE TO
\
TO
FUEL
Cleaning and Repair
1. Soak all metal components not replaced in car-
buretor cleaner.
Do not soak non-metal floats or
other non-metal parts. Follow the cleaning manu-
facturer's recommendations.
2. Clean all carbon from the carburetor bore, especially
where the throttle and choke plates seat.
Be careful
not to plug the idle or main fuel ports.
3. Dry out all passages with low pressure air (35 PSI).
Avoid using wire or other objectsfor cleaning which
may increase the size of critical passages.
4. Check the condition of the adjustment needle;
replace
if damaged. Replace float if loaded with fuel
or damaged.
5. Check the choke and throttle shafts for excessive
play in their bore. This condition may necessitate
replacement of the carburetor.
6. Replace old components with new parts.
Reassembly and Installation
1. Install needle valve, main jet, and float assembly.
Make sure float pivot pin is properly placed and float
moves freely without binding.
2. Turn carburetor on its side and measure float level
(Figure
4). Adjust float level only if necessary.
Measure float drop (the distance from the top of
carburetor body to top of float). Adjust only
if
necessary.
3. Position gasket on lower carburetor section and
install upper carburetor section.
4. Install idle adjustment screw, throttle stop screw,
and fixed main jet plug.
5. Mount carburetor on intake manifold and install
assembly on engine.
6. Connect governor and throttle linkage, choke
control, and fuel line. Mount air cleaner assembly.
7. Adjust carburetor and governor according to direc-
tions given in this section.