Pilot Screw Adjustment; Idle Drop Procedure - Honda CX650C 1983 Shop Manual

FUEL
SYSTEM
PILOT SCREW ADIUSTMENT
IDLE DROP PROCEDURE (U.S.A. ONl-Y)
. . W - . - . . . . -
pilot screws are factory pre-set and no
adjustment is necessary unless the pilot
screw is replaced (Page 4-8).
/
e
Limiter caps restrict adjustment
"c
77/ of a
turn.
m
Use a tachometer with graduations of 700
rpm or smaller, that will accurately indicate
L
a
l00
rpm change.
Use pilot screw wrench
07988-4220201.
W - . . . . . . -
CAUTION
Any forcibke attempt t o remove the pilot
screw limiter caps w i l l cause screw breakage.
l .
Turn each pilot screw clockwise until i t seats
lightly and back i t out to the specification
given. This is an initial setting prior to the final
pilot screw adjustment.
INITIAL OPENING: 2-3/8 turns out
PILOT SCREW
THROTTLE STOP SCREW
2. Warm up the engine t o operating temperature.
Stop and go driving for approximately 10
minutes i s sufficient.
3. Attach a tachometer.
4. Adjust the idle speed with the throttle stop
screw.
IDLE SPEED: 1,100
t '100
rpm
5.
Turn the pilot screw in or out to obtain the
highest engine speed.
6.
Readjust the idle speed with the throttle stop
screw.
7.
Turn the pilot screw in gradually until engine
speed drops
l 0 0
rpm.
NOTE
. - - p . . - - . . . . p -
-
-
I IA/IIPGR CAP
If the pilot screw seats before engine speed
drops
100
rpm, go t o step
8.
8. Turn the pilot screw 1 turn open from the
position obtained in step
7.
9. Readjust the idle speed with the throttle
stop screw.
10.
Repeat steps
6
through
8
for the remaining
carburetor.
11. Apply Loctite @ 601
or ecluivalent t o the
inside of the limiter caps. Place the caps over
the pilot screws so that their tabs rest against
the float chamber stop (Rich side), prevent-
ing further adjustment that would richen the
fuel mixture (So the pilot screw cannot be
turned counter-clockwise).
NOTE
-
- - - - p - - p . - - - -
--
Fir=
turn the pilot screw when installing
/
the limiter caps.
1
B a t e of Issue: December, 1982
O HONDA MOTOR
CO.,
LTD.