Carburetor Separation - Honda Nighthawk CB 750 1991 Service Manual

Requisite Sewice
Fuel System
1
~-
' .
'
'
NOTE
Carburetor removallinstallation (page 5-41
'
Carburetor separation (page 5-6)
-
The vacuum chamber and float chamber can be serviced with the carburetors assembled.
-
The pilot screws are factory pre-set and should not be removed unless the carburetors are overhauled.
.
Before disassembling the carburetors, turn each pilot screw in and carefully count the number of turns before
it
seats
lightly. Make a note of this to use as a reference when reinstalling the screws. If new pilot screws are installed, turn
each one out to the initial opening (page 1-6. Canadian model only).
(1
)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(1 4)
(1 5 )
(1
6)
(1 7)
(18)
(1 9)
(20)
(21)
(22)
(23)
Q'W
4
1
1
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Procedure
Vacuum Chamber Disassmbly Order
Vacuum chamber cover screw
Vacuum chamber cover
Spring
Diaphragmlvacuum piston
Jet needle holder
Spring
Jet needle
Float Chamber Disassembly Order
Float chamber cover screw
Float chamber
Float pin
Float
Float valve
Main jet
Needle jet holder
Needle jet
Slow jet
Starting Enrichment Valve Dkassembhl Order
Valve nut
Spring
Starting enrichment valve
Pilot Screw Disassembly Order
Pilot screw
Spring
Washer
O-ring
Remarks
Assembly is in the reverse order of disassembly.
NOTE
-
At installation, hold the piston up t o align the diaphragm
and to avoid pinching the it with the cover.
Assembly is in the reverse order of disassembly.
At installation, first tighten the two screws on the dowel pin
side.
For float level inspection, refer to section 8 of the Common
Service Manual.
Assembly is in the reverse order of disassembly.
Assembly
IS
in the reverse order of disassembly.