11
Place a new gasket on top of the float bowl with the
notch on the gasket aligned with the bump on the bowl
edge (the gasket will only fit onto the float bowl one
way.) Hold the float bowl to the carburetor body and
snap the retainer into position. Reinstall the bowl drain
screw, do not over tighten, reattach the fuel line.
NOTE: Bowl service is all that is normally required for
routine carburetor maintenance.
Rebuilding the carburetor body:
Before disassembling the carburetor body, check the
throttle shaft and body for excessive wear. If there is
excessive wear to the throttle body, it should be
replaced.
To rebuild the carburetor body it is necessary to remove
the carburetor from the engine.
1. Remove the speed control plate.
2. Remove the air cleaner body from the carburetor.
3. Disconnect and plug the fuel line.
4. Remove the carburetor mounting studs.
5. Remove the governor link.
6. Drain the carburetor float bowl.
7. Disassemble the float bowl (see bowl service).
To properly clean the carburetor body, the welch plugs
should be removed to expose drilled passages. To
remove welch plug, sharpen a small chisel to a sharp
wedge point. Drive the chisel into the welch plug, push
down on chisel and pry plug out of position.
In addition to this, the married system carburetor has
the "O" ring, main jet, and spring located behind the
drain system.
Install a new inlet seat into the float bowl. The grooved
side of the inlet seat goes into the float bowl first. Place
a drop of oil on the seat and press it in with a flat punch
until it seats. Do not scratch the inlet bore.
NOTE: Some models are equipped with a fuel inlet seat
retaining ring. If your replacement seat set comes with
a retaining clip install it on top of the seat.
Slide the inlet needle into the tabs on the float and put
the float pin into the hinge on the float. Carefully set the
float into position in the float bowl.
Be sure the needle drops into the fuel inlet. Snap the
float shaft into the tabs in the float bowl. It is not
necessary to adjust the float height even if the float has
been replaced.
Drop the main nozzle spring into the main nozzle well
in the float bowl. Put a small amount of oil on the main
nozzle “O” ring and push the nozzle into the main nozzle
well, “O” ring end first.
SPLIT SYSTEM
DRAIN
BOWL
MAIN NOZZLE
BLEED/JET
"O" RING IN GROOVE
SPRING
MARRIED SYSTEM
"O" RING
JET
SPRING
DRAIN SCREW
GASKET
GASKET
ALIGNMENT
MARKER
PRY OUT PLUG
SMALL CHISEL
PIERCE PLUG WITH TIP
WELCH PLUG TO
BE REMOVED
ABOUT 1/8" WIDE
After the welch plug is removed from the carburetor it
can be soaked in a commercial carburetor cleaner no
longer than 30 minutes. Be sure to follow the directions
on the container.
NOTE: Always pull the non metallic slip in venture out
before soaking in carburetor cleaner.
Reinstall the venture using the main nozzle to align it
correctly. The air bleed passages face the air filter.
After the carburetor has been soaked, all passages may
be probed with monofilament fishing line and
compressed air to open plugged or restricted passages.
INSERT GROOVED
FACE FIRST
INLET NEEDLE
SEATS AT
THIS POINT
PRESS IN UNTIL
SEAT RESTS ON
BODY SHOULDER
SEAT
5/32" FLAT PUNCH
RETAINING CLIP
DO NOT ALLOW
CHISEL POINT
TO STRIKE
CARBURETOR
BODY OR CHANNEL
REDUCER
SMALL CHISEL
Not For Resale
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