Sym DD 50 Service Manual

10. FUEL SYSTEM
10-6
Float/Float Valve/Jet
Removal
Remove the float from carburetor body.
Remove the float pin and then remove float and
float valve.
Check the valve seat for worn out or damage.
Check float for bend and if fuel inside the float.
Before removing both the throttle valve stopper
and air screws, record their original turns for
close to their original set up position as
installation.
Caution
Do not tighten the screw forcedly to avoid to
damaging the valve seat.
Remove main jet, needle jet seat and idle jet and
clean them and each component with
compressed air.
Installation
Install the idle jet, the needle jet seat and main jet.
Then install the throttle valve stopper and air
screws to their original position according to the
marks as removal. Adjust the screws if replace
with new ones.
Air inlet for
fuel rich
circuit
Float cap
Air inlet for idle speed
Air screw
Throttle valve
stopper screw
Needle jet
Needle jet seat
Main jet
Float pin
Float valve
Float
O-ring
Float cap
Screw
Draining screw
Idle jet
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Sym DD 50 Specifications

General

Brand	Sym
Model	DD 50
Category	Scooter
Language	English