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FUEL SYSTEM
AIR CUT-OFF VALVE (U type only)
Remove the
sc
rew and the air cut-off valve from the
~-----------------,
carburetor body
_
Remove the
slow air jet and three O -rings.
Check the air cut-off valve and jet for damage.
Clean
the
air jet with cleaning solvent and blow
open
with
compressed air.
VACUUM CHAMBER
Remove
the four screws and clamps while holding
the vacuum chamber
cover.
Remove
the
vacuum chamber
cover,
compression
spring and diaphragmlvacuum piston from the
car-
buretor body.
Be careful
not
10
Turn
the
needle holder counterclockwise by using a
damage the
screwdriver
whi
le
pressing
it
in and release the
diaphragm.
holder flange
from
the vacuum
piston.
Remove
the
needle
holder,
spring
,
jet needle and
washer.
'1, \
O-RINGS
~----:~
SLOW AIR
JET
~
AIR CUT-OFF VALVE
~
SCREW
WIRE
CLA::t-SMALL HOSE
CLAMP
o
VACUUM CHAMBER COVER
NEEDLE HOLDER
5-9
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