Aeon AT56-69E, Service Manual, Page: 112 / 196

FUEL AND CARBURETOR
6-2
CARBURETOR SYSTEM
Gasoline is extremely flammable and explosive
under certain conditions.
Always stop the engine and refuel outdoors or in a
well-ventilated area.
Do not overfill the tank. The tank is at full capacity
when the fuel reaches the bottom of the filler neck.
Leave room for expansion of fuel.
Never start the engine or let it run in an enclosed
area. Gasoline powered engine exhaust fumes are
poisonous and can cause loss of consciousness
and death in a short time.
Never drain the float bowl when the engine is hot.
Severe burns may result.
Do not smoke or allow open flames or sparks in or
near the area where refueling is performed or where
gasoline is stored.
If you get gasoline in your eyes or if you should
swallow gasoline, seek medical attention
immediately.
If you spill gasoline on your skin or clothing,
immediately wash with soap and water and change
clothing.
CARBURETOR FUNCTION
Carburetor Component Function
System Main
Components
Main
Function
Main
Affect
Float System
Level Control)
Inlet Pipe, Needle
and Seat, Float
and
Float Pin
Maintains
specified fuel
level in float
chamber
(carburetor float
bowl).
All systems; all
throttle ranges
Venting Passages in
carburetor and
vent lines.
Supplies
atmospheric
pressure to float
chamber.
All systems; all
throttle ranges.
Starter
(Choke Plate)
Choke Lever,
Cable, and Choke
Butterfly
Supplies
additional fuel air
mixture
necessary for
cold starting.
All throttle
ranges. Greatest
effect low throttle
settings and idle.
Pilot
Idle System)
Pilot Jet /
Passageways,
Pilot–Mixture
Screw with Spring
Washer and
Sealing O–Ring,
Pilot Outlet and
Throttle Valve.
Primarily
supplies fuel at
idle and low
throttle positions.
Mainly idle
1/4 throttle.
Minimal effect
after 1/2 throttle.
Main System Main Jet, Main Air
Passage, Needle
Jet, Jet Needle,
Throttle Valve.
Supplies fuel at
mid–range and
high throttle
settings.
1/4 to full throttle.