Float Bowl Service - Tecumseh VLV Technician's Handbook

The carburetor is a float feed, nonadjustable type, with a
one piece extruded aluminum body. The float bowl,
float, nozzle, and venturi are nonmetallic, minimizing the
corrosion and varnishing problems.
Gasoline (fuel) vapors are highly
WARNING
flammable and can explode. Fuel
vapors can spread and be ignited by a spark or
flame many feet away from engine. To prevent
injury or death from fuel fires, follow these
instructions:
• NEVER fill fuel tank indoors. Fill fuel tank
outdoors in a well-ventilated area.
• Use only an approved red GASOLINE container
to store and dispense fuel.
• If fuel is spilled, DO NOT start engine. Move
machine away from area of spillage. Avoid
creating any source of ignition until fuel vapors
are gone.
Common service areas of the carburetor are contained
in the fuel bowl. These areas are the float, needle, seat
and main nozzle. All of these parts can be serviced
without removing the carburetor body from the engine.

Float Bowl Service

1. Be sure engine is outdoors and in a well-ventilated
area.
2. Disconnect and plug the fuel line.
3. Remove the bowl drain screw.
4. Remove the float bowl by snapping the bale spring
towards the throttle end of the carburetor.
Use care when using tools to remove the bail from the
carburetor. Failure to do so may result in bending the
retainer.
After the bowl gasket is removed, the parts contained in
the bowl can be inspected and serviced.
5. Pull out the main nozzle and spring.
6. Inspect the main nozzle for deposits.
2-4
NOTE
"O" Ring
Air
Bleed
Holes
Split System Main Jet
Jet and Nozzle Ass'y.
Be sure to check the cross holes on the body of the
nozzle and the main orifice in the bottom of the nozzle.
Compressed air can pierce the
WARNING
skin and cause injury. DO Not use
your hand to check for leaks or to determine air
flow rates. Wear safety glasses to shield from
debris. Failure to do so could result in death or
serious injury.
7. Use a rubber tipped tapered nozzle on air hose and
apply low pressure compressed air or use a
monofilament fishing line to remove any deposits
in the main jet or cross holes.
Married System Main Jet
NOTE
695578