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Kawasaki KZ1300-A1 Quick Reference Manual Page 18

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ADJUSTMENT --ENGINE
CARBURETOR
For internal carburetor maintenance and adjustment
of parts, see the maintenance section (Pg. 168) of this
manual. The following procedure covers the idling ad-
justment, which should be inspected during periodic
maintenance or whenever the idling setting has been
disturbed.
This procedure also includes the necessary
steps for obtaining proper carburetor synchronization
.
When the idle speed is too low, the engine may stall.
When the idle speed is too high, fuel consumption will
be excessive, and the resulting lack of engine braking
may make the motorcycle difficult to control.
Poor
carburetor synchronization causes unstable idling, slug-
gish throttle response, and reduced engine power and
performance.
The following procedure consists of two parts: idling
adjustment and
synchronization.
Idling Adjustment
1) Idle speed adjustment
-Start the engine, and warm it up until
the
water tem-
perature gauge needle comes between the
two
center
lines.
-Adjust idle speed to 800-900 rpm by turning the idle
adjusting screw.
A. Idle Adjusting Screw
-Open and close the throttle a few times to make sure
that the idle speed does not change. Readjust if neces-
sary.
NOTE: With the engine idling, turn the handlebar to
either side. If handlebar movement changes idle
speed,
the throttle cables may be Improperly adjusted or in-
correctly routed, or they may be
damaged.
I
WARNING
I
Operation with improperly adjusted, in-
a,. _ _ _ _
II. correctly routed, or damaged cables could
result in an unsafe riding condition.
2) Idle mixture
adjustment
-Remove the fuel tank (Pg. 46).
-Check that the paint is on each pilot
screw.
If the
paint has come off and the correct screw position is
doubtful, turn in the screw until it seats lightly
,
and
then back it out
1%
turns.
A. Pilot Screw
-Install the fuel tank (Pg.
46).
-Perform idle speed
adjustment.
NOTE: If proper idle speed cannot be obtained by this
adjustment alone, first check the following and correct
as necessary.
Engine oil (Pg. 21)
Spark Plugs (Pg. 12)
Ignition Timing
(Pg.
239)
Throttle Cables (Pg. 138)
Cylinder Compression
(Pg.
182)
Air Cleaner Ell'ment (Pg. 164)
Air Cleaner Duct and Carburetor Holder Leakage
Valve Clearance
(Pg.
12)
Carburetor Synchronization
To accurately synchronize each carburetor, the use
of vacuum gauges
is
essential.
NOTE: During carburetor synchronization, the fuel
tank will be removed.
In most cases, it will be
ne·~
es­
sary to temporarily replace the standard fuel line with
line long enough to reach the fuel tank while it is located
on your
workbench.
I
WARNING
I
Use
~xtreme
caution.
when working
~ith
a,-_ _ _ _
II. gasoline, open fuel hnes, etc. to aVOid a
fire or explosion.
To check carburetor synchronization:
-Start the engine, and warm it up until the water tem-
perature gauge needle comes between the two center
lines.
Water Temperature Gauge
Two Center
_---:::::::::::::==Fr
Lines
Gauge
Needle
18

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