Sym ALA125CC Manual page 123

4. FUEL SYSTEM
FLOAT CHAMBER
Disassembly
Remove 4 mounting screws and then the
float chamber cover.
Remove the float pin and float valve.
Checking
Check float needle valve and valve seat for
drop difference damage, wear out, dirty or
clogged.
Cautions
In case of worn out or dirt, the float valve
and valve seat will not tightly close
causing fuel level to increase and as a
result, fuel flooding. A worn out or dirty
float valve must be replaced with a new a
new one.
Remove main jet, fuel needle jet holder, fuel
needle jet, slow jet, fuel amount adjustment
screw.
Cautions
Take care not to damage jets and adjust
screw.
Before removing adjustment screw, turn
it all the way down and note the number
of turns.
Do not turn adjustment screw forcefully
to avoid damaging valve seat face.
Clean jets with cleaning fluid.
Then use compressed air to blow dirt off.
Blow carburetor body passages with
compressed air.
4-8
float
screws× 4
float pin
float
slow jet
ount
fuel am
adjustmen
t screw
fuel needle holder
fuel needle jet
slow jet
SYM
float pin
float needle
valve
float pin
main jet
fuel needle
holder
fuel needle
jet
main jet