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FUEL
AND LUBRICATION SYSTEM
5-6
SLOW SYSTEM
This
system supplies fuel during engine operation with throttle
valve closed or
slight opened.
The fuel
from
float chamber is first passed through main jet
and metered by pilot jet where
it
mixes with
air coming in through
pilot
air
jet.
This mixture, rich with
fuel,
then
goes up
through pilot pipe to pilot screw. A
part
of the mixture is
discharged into the main bore ouvt
of
bypass ports. The remainder is then metered by pilot screw and
sprayed out into the main bore through pilot outlet.
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7 - -
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Fuel/Air Mixture
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