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Kawasaki KZ1300-A1 Quick Reference Manual Page 259

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MAINTENENCE--ELECTRICAL
e<:heck the rear brake light switch in the same way
that the front brake light switch was inspected. If
there is no continuity whenever the rear brake pedal
if depressed, replace the switch.
A. Rear Brake Light Switch
Leeds
HORN
The horn circuit and construction are shown in
Fig.
K73.
When the horn button is pressed (with the
ignition switch
on),
the horn is grounded to complete
the horn circuit. Current then flows through the horn
contacts and horn
coil,
magnetizing the iron core. The
magnetized iron core pulls on the armature and
dia-
phragm
assembly,
the movement of which pushes open
the contacts, interrupting the current flow
.
Since the
core now loses its
magnetism,
the armature and
dia-
phragm assembly springs back
to
its original
position,
closing the
contacts.
This cycle repeats until the horn
button is released. Since each cycle takes
only
a fractu re
of a second, the diaphragm moves fast enough to
pro-
duce sound.
Hom Construction
Battery
rlI14I==I::::::t::f-
-~-
--------:
,
, ,
,
The horn contacts wear down after long use and may
need to be adjusted from time to time. When satisfactory
horn performance cannot be obtained by adjustment,
check the horn and the rest of the horn circuit.
If
the
horn adjustment alone cannot the trouble and the rest
of the electrical system is functioning properly, the
horn must be replaced.
It cannot be disassembled.
Adjustment
NOTE: Two horns are installed
on
this machine.
Dis-
connect the horn you will not adjust so that you can
determine the change of the horn sound during adjust-
ment.
eDisconnect
the black/white horn lead, and connect an
ammeter in series to the horn circuit. The + ammeter
lead goes to the horn terminal and the
-
ammeter lead
to the black/white lead.
Horn
Current Measurement
Main Switch
Ohmmeter
DC 20A Range
eFully
loosen the adjusting screw locknut.
eTurn
on the ignition key
,
and keep the horn button
pressed while turning the horn adjusting screw. Adjust
for the best hom sound while keeping the current
under 2.5 amperes.
~
: , ":::.:r;o:
::ju:~~gi:::,inh::
current with the possibility of burning
out
the hom coil.
A. Locknut
B. Adjusting Screw
eTighten
the adjusting screw locknut.
NOTE:
The horn will not sound properly if it is mount-
ed incorrectly or if any cable or other part is touching it.
259

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