Air Cut-Off Valve; Carburetor Body Cleaning - Honda 1998 VT750C Service Manual

AIR CUT-OFF VALVE
DISASSEMBLY
Remove the two screws, set plate and air cut-off
valve cover.
NOTE:
The air cut-off valve cover is under spring pressure.
Do not lose the spring and screws.
FUEL SYSTEM
SCREWS
INSPECTION
Check the diaphragm for deterioration, pin hole or
other damage.
Check the spring for deterioration or other damage.
Check the diaphragm needle for excessive wear at
the tip or other damage.
Check the orifice of air vent for clogging.
Check the U-ring for damage.
Replace the air cut-off valve as an assembly, if
necessary.
DIAPHRAGM
U-RING
J
;~'
SPRING
VALVE
COVER
/
)
ASSEMBLY
Assembly is in the reverse order of disassembly.
NOTE:
• Install the U-ring with its flat side toward the
carburetor body as shown.
• Be careful not pinch the diaphragm.
• Install the set plate aligning its cut-out with the
tab on the valve cover.
CARBURETOR BODY CLEANING
CAUTION:
• Cleaning the air and fuel passages with a piece
of wire will damage the carburetor body.
• Remove the diaphragms
to
prevent damage
to
them before using air to blow open passage.
Disassembled the carburetor (page 5-10).
Blow open all air and fuel passages in the carburetor
body with compressed air.
Clean the fuel strainer in the float valve using
compressed air from the float valve seat side.
U-RING
5-17