Service Manual

CARBURETOR OVERHAUL
Carburetion problems that are not corrected by mixture
adjustments are usually a result of gummed-up fuel
passages or worn internal parts. The most effective
solution is a carburetor overhaul.
In general, overhauling a carburetor consists
of disas-
sembly, a thorough cleaning, and replacement of worn
parts. Carburetor overhaul kits are available.
General instructions for overhauling a carburetor are
given below. Carefully note the position of all parts while
removing
to assure correct placement when reassemb-
ling. Read through all the instructions before beginning
for a better understanding of the procedures involved.
Carburetor components are shown in Figure
3.
lgnition of fuel can result in severe
smoke or allow any spark, pilot light, or arcing eguip-
ment near the fuel system.
personal injury or death.
Do not
Removal
1. Remove air cleaner assembly.
2. Disconnect throttle linkage, choke control, and fuel
line from carburetor.
3. Remove carburetor from intake manifold.
Disassembly
1. Remove main jet and idle adjustment needle.
2. Remove attaching screws and separate upper and
lower carburetor sections.
3. Carefully note position of float assembly parts, then
pull out retaining pin and float assembly.
4. Remove needle valve.
ASSEMBLY
IDLE ADJUSTMENT
NEEDLE
AND LEVER
THROTTLE STOP CAP
SCREW
FS-1440-4
FIGURE 3. CARBURETOR ASSEMBLY