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HONDA
'80 CB400T ADDENDUM
C B 4 0 0 T
1.
Turn each pilot screw clockwise until i t
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 i s 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 i s 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 i s replaced, a new limiter cap
must be installed after pilot screw adjustment
i s completed.
After final adjustment, cement the limiter cap
over the pilot screw, using LOCTITEa
#601
or eouivalent. The limiter cap should be
placed against i t s 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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Table of Contents
Troubleshooting
