ROUTINE SERVICING
Air Cleaners
Remove
the air cleaners and use an air
line
to remove
dust
from
between
the element folds. When refitting
the cleaners,
ensure rhat
rhe holes above the carburertor Rane;selscre\
holes
are
correctly
aligned
with
corresponding
holes h the air cleaner
and gaskets.
(See
Figs. 24
and
25).
If the engine
is operating under dusty conditions, clean the
filters more frequently.
Valve
Rocker Clearances
(Fig.
33)
Check
and, if necessary, ad.just the inlet and exhaust
valve
clearances to
0 010"
when cold. These settings,
which are correct
for all operating
conditions, are
obtained
as follows :
1. Turn the crankshaft until No. I pushrod reaches
its highest
point
;
then rotate the crankshaft a further complete revolution.
TOP
2. Slacken the locknut and insert a
0'010" feeler
gauge between
No. I rocker and
valve
stem.
Turn the adjuster with a screw-
driver until
slight resistance is felt as the gauge is moved
across the
valve
stem.
Tighten the locknut, re-check the
clearance
re-adjusting it if necessary. Deal with the remain-
ing rockers in a similar manner, ensuring
that
each rocker
is correctly positioned
before attempting to adjust it.
12,000 MrLEs
At 12,000 mile
intervals, ca[y out the work listed under
6,000 miles, and the following additional
work.
Crankcase
Breather Valve
(Fig.
26)
Slacken the pipe clips and
remove the
breather pipes.
Remove
the nut and bolt
retaining the
valve
and remove the valve.
Disengage the clip from the
-valve
body and
lift
out
the diaphagm
Fig, U
Fis. 26
-
Fig.
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