Oil Filter Screen Cleaning - Honda CB250N Shop Manual

Maintenance
Measure
the valve clearances for the
right
or
left,
cylinder on
the
compression
stroke {both rocker
arms
for
the cylinder be-
ing
checked
should
be loose)
by
inserting a feelar
gauge
be-
tween
the adjusting
screw and valve stem.
Valve Clearance:
IN:
0.06-0.10
mm
(0.002-0. 004
in)
EX:
0.06-0.10
mm
(0.002-0.004
in)
If
adjustment
is
needed, loosen
the lock
nut and adjusting
screw
and
insert
the proper dimension
feeler
gauge.
Turn
the adjusting
screw
and adjust the
clearance
until
there
is
a
slight
drag on
the
feeler
gauge.
.
Hold the adjusting screw and
tighten
the lock nut.
[
5.
TOOL
|
Valve adjusting wrench, 8
x
9
mm
07708-0030100
Valve adjusting
wrench
B
07708
—
0030400
or
07908-KE90200
Torque: 10 N-m
[1.0
kg-m. 7
ft-lbl
Recheck
the valve clearances.
Turn the crankshaft counterclockwise one
full
turn
(360
degrees)
and
align
the
"T" mark
with the index
mark
again
and check
the valve clearances
of
the other cylinder.
install
the cylinder
head
cover (page 7-6).
Install
the crankshaft
and
timing hole cap.
Oil Filter
Screen Cleaning
Drain the engine
oil.
Remove
the
oil
pump
(page
4-3).
Remove
the
oil filter
screen from the
oil
pump.
Clean
the
oil
filter
screen by washing
it is
clean solvent
and
blowing
it
dry
with compressed
air.
Reinstall the
oil filter
screen onto the
oil
pump.
Install
the
oil
pump
(page4-3).
FSSS
the crankcase
to the proper level with the
recommended
oil.
11)
Oil
FILTER
SCREEN
3-6