HONDA
'80
CB400T
ADDENDUM
CB400T
1.
Turn each pilot screw clockwise until it
seats lightly and back
it
out to the speci-
fied initial opening.
This
is
an initial setting prior to the final
pilot screw adjustment.
INITIAL OPENING:
2
TURNS OUT
-
CAUTION
I
Damage to the pilot screw seat will
occur if the pilot screw
is
tightened
.
- -
against the seat.
2.
Start the engine and warm
it
up to op-
erating temperature. Stop and go driving
for
10
minutes
is
sufficient.
3.
Connect a tachometer.
4.
Adjust the idle speed with the throttle
stop screw.
IDLE SPEED:
1,200
rpm
5.
Turn each pilot screw in or out to obtain
the highest engine speed.
6.
Readjust the idle speed.
7.
Turn one of the pilot screws in gradually
until the engine speed
is
lowered by
100
rpm.
8.
Turn the pilot screw 318 turn out from
the above position.
9.
Readjust the idle speed with the throttle
stop screw.
10.
Repeat steps
7
through
9
for rernain-
ing carburetor.
LIMITER CAP INSTALLATION
If a pilot screw
is
replaced, a new limiter cap
must be installed after pilot screw adjustment
is
completed.
After final adjustment, cement the limiter cap
over the pilot screw, using
LOCTITEa
#601
or eouivalent. The limiter cap should be
placed against
its
stop, preventing further
adjustment that would enrich the fuel mixture
(limiter cap position permits clockwise rota-
tion and prevents counterclockwise rotation).
NOTE
led. They prevent misadjustment that
could cause poor performance and
FLOAT CHAMBER
HIGH ALTITUDE ADJUSTMENT
HIGH ALTITUDE (ABOVE
2,000
rn/6,500
ft)
Adjust the carburetors for riding above
CARBURETOR SPECIFICATIONS
2,000
m
(6,500
ft) to improve high altitude
driveability.
than
1,500
meters
(5,000
ft)
with the
high altitude carburetor specifications
may cause engine overheating and
24-1
2
Date of Issue: Nov.,
1979
O
HONDA MOTOR CO., LTD.
Secondary
Main jet
Accelerator Pump-Arm-to-
Stopper Clearance
Pilot Screw
Idle Speed
#lo5
4
mm (118 in)
112
turn in
1,200
*
100
rpm
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