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Always pull the non metallic venturi out before soaking in
carburetor cleaner.
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.
4.
Reinstall the venture using the main nozzle to align it
correctly.
NOTE
The air bleed passages face the air filter.
Compressed air can pierce the
skin and cause injury. DO Not
use your hand to check for leaks or to determine
air flow rates. Wear safety glasses to shield form
debris. Failure to do so could result in death or
serious injury.
After the carburetor has been soaked, all passages may
be probed with monofilament fishing line and compressed
air to open plugged or restricted passages.
3.
Disguard gasket.
4.
Disconnect and plug the fuel line.
5.
Remove the carburetor mounting studs.
6.
Remove the governor link.
7.
Drain the carburetor float bowl.
8.
Disassemble the float bowl
9.
See Float Bowl Service.
NOTE
To properly clean the carburetor body, the welch plugs
should be removed to expose drilled passages.
Removing Welch Plug
1.
Sharpen a small chisel to a sharp wedge point.
2.
Remove welch plug.
3.
Drive the chisel into the welch plug.
a. Push down on chisel
b. Pry plug out of position.
NOTE
18. 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.
In addition to this, the married system carburetor has
the "O" ring, main jet, and spring located behind the
drain system.
Split System
Drain
Bowl
Main Nozzle
Bleed/Jet
"O" Ring In Groove
Spring
Gasket
Alignment
Marker
19. Place a new gasket on top of the float bowl with the
notch on the gasket aligned with the bump on the
bowl edge.
NOTE
The gasket will only fit onto the float bowl one way
20. Hold the float bowl to the carburetor body and snap
the retainer into position.
21. Reinstall the bowl drain screw, do not over tighten.
22. 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 re-
placed.
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.
Married System
"O" Ring
Jet Spring
Drain Screw
Gasket
WARNING
Pry Out Plug
Small Chisel
Welch plug to be
removed.
Do not allow chisel
point to strike
carburetor body or
channel reducer.
Small Chisel
