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50 DISASSEMBLY-ENGINE
INSTALLED
VALVE,
VALVE GUIDE
Removal:
•Remove the
fuel tank
(Pg.
39).
•Remove the
carburetors (Pg. 39).
Removal
of the
throttle
cables
from the
carburetors is
not
necessary,
but put the carburetors on
the
frame to avoid cable
stretch or carburetor damage.
•Remove
the mufflers
(Pg.
44}.
•Remove the
cylinder head cover
(Pg.
44)
.
•Remove
the
camshaft
(Pg.
47)
.
•Remove
the
cyli
nder head
(Pg.
48)
.
•Using the
valve spring compressor and
adapter
(special
tools) to
press down
the valve
spring retainer
'?),
re-
move
the
split
keeper(t.
A. Valve
Spring Compressor (57001-241)
B.
Adapter
(57001-1019)
•Remove
the tool,
and pull
out the valve spring
retainer,
outer
spring@,
and
inner spring ({).
•Remove the
spring seat@.
•Pu
ll
out the valve.
•Remove the
clip
(~
;
and
pull off
the
oil
seal.
A.
Clip
B. Oil Seal
•Heat
the area
around
the
guide to about
120-150°(
(248 ....,302°F}, and hammer lightly
on the valve
guide
arbor
(special
tool) to remove the guide from the
top
of the cylinder
head.
A. Valve
Guide
Arbor (57001-1021)
Installation
:
NOTE:
If
a new valve
guide
is installed, the valve
to
valve
guide
clearance must
be checked (Pg.
124).
•Apply oil to
the
valve
guide.
•Heat
the area around
the
valve
guide
hole
to
about
120....., 150°C (248....., 302°F), and
drive the valve
guide
in from the top
of
the head
using the valve
guide arbor
(special tool).
•Ream
the
valve guide with
the
valve
guide reamer
(special
tool) even if the old guide
is
reused.
(
E48
)
A. Valve
Guide Reamer
(57001-1020)
•Check the valve seating
surface using
machinist's
dye,
and
correct if necessary. See
page I
24
for
inspection
and
repair
procedures.
•Fit
a
new oil
seal onto
the valve
guide and
secure it
with
a clip.
•Apply
a small amount
of molybdenum
disulfide grease
to the valve
stem, insert
the valve,
and
install the
spring
seat.
•Install the
inner
and outer springs.
The
end
with the
more closely spaced coils
must be placed
against
the
cylinder head.
• Install
the spring
retainer,
press
it
down
with
the
valve
spring compressor
assembly (special
tool),
and
fit the
split
keeper into
place.
•After
making
sure
that
the
split keeper, spring
retainer,
and valve stem are
all
properly
fitted
,
remove
the valve
spring compressor assembly.
•Install
the
cy
linder
head
(Pg. 48}.
Install
the
camshafL
(Pg.
47).

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   Also See for Kawasaki Z250 1981

This manual is also suitable for:

Kz350 1981

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