Pilot Screw Removal/Installation; Pilot Screw Adjustment Idle Drop Procedure - Honda CB400T Shop Manual

,
3 H O N D A
!&
CM400T.400A
'80 ADDENDUM
Measure the clearance betweeo the adjusting
arm and stopper on the carburetor body.
CLEARANCE:
CM4OOT: 7.0
mm (114
in.)
CM400A:
8.9 mm (318
in.)
Adjust by bending the adjusting arm
PILOT SCREW REMOVAL1
INSTALLATION
should not be removed unless the
Remove the carburetors (page 4-2).
Remove the float chamber lpage 4-5)
Turn the pilot screw i n and carefully count
the number of turns before
it
seats lightly.
Make a note of this to use as a reference when
reinstalling the pilot screw.
CAUTION1
Damaoe to the ~ i l o t screw seat will
1
occur-if the p i ~ d t screw i s tightened
, against the seat.
Remove the pilot screw.
Inspect the pilot screw for wear and replace if
necessary.
Install the pilot screw and return it t o i t s
original position as noted during removal.
Perform pilot screw adjustment i f a new
pilot screw i s installed.
NOTE
i
DO not install limiter caps on new pilot
!
screws until after adjustment has been
I
made (See Belowl.
PILOT SCREW ADJUSTMENT
IDLE DROP PROCEDURE
The pilot screws are factory pre-set
and no adjustment is necessary unless
the pilot screw is replaced (see
removal above).
Limiter caps restrict adjustment to
718
turn necessitating pilot screw
replacement i f more adjustment is
required.
Use a tachometer with graduations of
lOOrpm or smaller and that will
accurately indicate a l 0 0 r p m change.
EN
Date of Issue: July.
1979
O
HONDA MOTOR
CO..
LTD.