Carburetor Specifications; Carburetor Schematic; Carburetor - KYMCO MXU400 Service Manual

Fuel/Lubrication/
Cooling
NOTE: KYMCO recommends the use of new
gaskets, lock nuts, and seals and lubricating all
internal components
engine/transmission.
NOTE: Some photographs and illustrations
used in this section are used for clarity purposes
only and are not designed to depict actual
conditions.
NOTE: Critical torque specifications are located
in Section 1.
SPECIAL TOOLS
A number of special tools must be available to the
technician when performing service procedures in this
section.
Description
Oil Pressure Test Kit
Seal Removal Tool
Tachometer
NOTE: Special tools are available from the
KYMCO Spare Parts Department.

Carburetor

Specifications
ITEM
Carburetor
Main Jet
Slow Jet
Pilot Screw Setting (turns)
Jet Needle
Idle RPM (engine warm)
Starter Jet
Float Height
Throttle Cable Free-Play (at lever)
4-2
when servicing the
p/n
Keihin CVK34
112
35
2 3/4
NLGB
1250-1350
75
17 mm
3-6 mm (1/8-1/4 in.)

Carburetor Schematic

KEY
1. Cover 15. Float Pin
16. Pilot Screw
2. Screw
17. Spring
3. Spring
18. Washer
4. Vacuum
Piston
19. O-Ring
5. Spring Seat
20. Idle Adjust
6. Jet Needle Screw
21. Washer
7. Needle Jet
22. Spring
8. Jet Holder
23. Plate
9. Main Jet
10. Slow Jet 24. Screw
11. Starter Jet 25. Electric
Choke
12. Float Valve
26. Choke Cover
13. Clip
14. Float
Carburetor
WARNING
Whenever any maintenance or inspection is per-
formed on the fuel system during which there
may be fuel leakage, there should be no welding,
smoking, open flames, etc., in the area.
REMOVING
1. Remove the gas tank (see Gas Tank in this section).
2. Disconnect the intake air housing boot from the
carburetor; then slide the intake air housing to the
rear to clear the carburetor.
27. Float Chamber
Assy
28. O-Ring
29. Screw
30. Spring
31. Diaphragm Assy
32. Pump Housing
33. U-Ring
34. Screw
35. Screw
36. Throttle Cable
37. Cover
38. Screw
39. Vent Hose
0740-600