Fuel System - KYMCO SUPER8 50 Service Manual

5

. FUEL SYSTEM

SERVICE INFORMATION.......................5-2
TROUBLESHOOTING..............................5-3
CARBURETOR REMOVAL.....................5-4
AUTO BYSTARTER .................................5-4
AIR CUT-OFF VALVE .............................5-6
VACUUM CHAMBER ..............................5-6
FLOAT CHAMBER...................................5-8
SERVICE INFORMATION
GENERAL INSTRUCTIONS
Gasoline is very dangerous. When working with gasoline, keep sparks and flames away
from the working area.
Gasoline is extremely flammable and is explosive under certain conditions. Be sure to
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. Damaged control cables will not operate smoothly.
• When disassembling fuel system parts, note the locations of O-rings. Replace them with new
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
ACCELERATING PUMP .......................5-10
CARBURETOR INSTALLATION.........5-11
PILOT SCREW ADJUSTMENT ............5-12
FUEL TANK............................................5-13
FUEL UNIT .............................................5-14
AIR CLEANER .......................................5-14
Standard
LIMIT SPEED #K80 NOT LIMIT SPEED K82
1900rpm
2～6mm
SUPER8 50
18.5
CVK
10
#35
/
2± 1
2
5-2