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Carburetor Inspection - Kawasaki ZR-7S Service Manual

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2-20 FUEL SYSTEM
Carburetors
Carburetor Inspection
A
WARNING
Gasoline is extremely flammable and can be ex-
plosive under certain conditions. Turn the ignition
switch OFF. Do not smoke. Make sure the area is
well-ventilated and free from any source of flame
or sparks; this includes any appliance with a pilot
light.
.
Remove the carburetors.
.
Before disassembling the carburetors, check the fuel level
(see Fuel level Inspection).
* Ifthe fuel level is incorrect, inspect the rest of the carbu-
retor before correcting it.
.
Slide the starter plunger.lever [A]to the left and release
it to check that the starter plungers move smoothly and
return by spring tension.
* Ifthe starter plungers do not work properly, replace the
carburetors.
.
Turn the throttle cable pulley [B]to check that the throttle
butterfly valves move smoothly and return by spring ten-
sion.
*If the throttle valves do not move smoothly, replace the
carburetors.
.
Disassemble the carburetors.
.
Clean the carburetors.
.
Check that the O-rings on the float bowl and pilot screw
and the diaphragmon the vacuumpistonare ingood
con-
dition.
*If any of the O-rings or diaphragms are not in good con-
dition, replace them.
.
Check the plastic tip [A]of the float valve needle [B]. It
should be smooth, without any grooves, scratches, or
tears.
*If the plastic tip is damaged [C], replace the needle.
. Push the rod [0] in the other end of the float valve needle,
and then release it [E].
*If the rod does not spring out, replace the needle.
.
Check the tapered portion [A] of the pilot screw [B] for
wear or damage.
*
Ifthe pilot screw is worn or damaged on the tapered por-
tion, it willprevent the engine from idling smoothly. Re-
place it.
B
@
GC060405S 1 C
GC060406S 1 C

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