KYMCO Venox 250, Service Manual

Page: 67 / 243

4
. FUEL SYSTEM
4-6
VENOX250/250i
ASSEMBLY
Install the vacuum piston/diaphragm in the
carburetor body.
Install the spring and then install the vacuum
chamber cover.
Tighten the four screws.
AIR CUT-OFF VALVE
DISASSEMBLY
Remove the two screws attaching the air cut-
off valve.
Remove the spring and vacuum diaphragm.
Check the vacuum diaphragm for cracks or
damage and check each passage for
clogging.
FLOAT CHAMBER
DISASSEMBLY
Remove the four float chamber screws and
the float chamber.
Loosen the float pin screw.
Remove the float pin, float and float valve.
x
Be careful not to damage the diaphragm.
x
Hold the vacuum piston while
tightening the vacuum chamber cover.
＊
x
Be sure to set the vacuum diaphragm
lip into the groove on the carburetor.
x
When installing the air cut-off valve
cover, make sure that the vacuum
diaphragm is properly installed.
x
Don’t apply the vacuum diaphragm
with the carburetor cleaner.
＊
Screw
Spring
Cover
O-ring
Screw
Float Float Valve
Float Pin
Screw