KYMCO FILLY LX 50 Service Manual page 56

5
. FUEL SYSTEM
SERVICE INFORMATION.......................5-3
TROUBLESHOOTING..............................5-4
CARBURETOR REMOVAL.....................5-5
AUTO BYSTARTER .................................5-5
AIR CUT-OFF VALVE .............................5-7
VACUUM CHAMBER ..............................5-7
FLOAT CHAMBER...................................5-9
SERVICE INFORMATION
GENERAL INSTRUCTIONS
G asoline is very dangerous.
fr om the working area.
Gasoline is extremely flammable and is explosive under certain conditions.
work in a well-ventilated area.
• When disassembling the carburetor, be sure to service the vacuum piston and float chamber.
• Do not bend or twist control cables.
• When disassembling fuel system parts, note the locations of O-rings.
ones during assembly.
• Before float chamber disassembly, loosen the drain screw to drain the residual gasoline into a
clean container.
• After the carburetor is removed, plug the intake manifold side with a clean shop towel to prevent
foreign matters from entering.
• Remove the vacuum diaphragm before cleaning the carburetor air and fuel passages with
compressed air to avoid damaging the vacuum diaphragm.
• When the motorcycle is not used for over one month, drain the residual gasoline from the float
chamber to avoid erratic idling and clogged slow jet due to deteriorated fuel.
SPECIFICATIONS
Item
Venturi dia. (mm)
Type
Float level (mm)
Main jet
Slow jet
Idle speed
Throttle grip free play
Pilot screw opening
5-3
ACCELERATING PUMP .......................5-11
CARBURETOR INSTALLATION.........5-12
PILOT SCREW ADJUSTMENT ............5-13
FUEL TANK............................................5-14
AUTO FUEL VALVE .............................5-15
FUEL UNIT .............................................5-18
AIR CLEANER .......................................5-18
When working with gasoline, keep sparks and flames away
Damaged control cables will not operate smoothly.
FILLY LX 50
Replace them with new
Standard
20
CVK
17
#85
#35
1900rpm
2 6mm
/
1
2±
2
Be sure to