,
"CRUSADER
250," "250
CLIPPER"
AND
"CRUSADER
SPORTS"
Do
not attempt to save petrol
by
fitting a smaller
main jet. The main
jet
has no effect unless the machine
is
being driven
at
above half throttle.
If
the machine uses an excessive amount
of
petrol,
look for possible leaks, check the slow running adjust-
ment and try lowering the taper needle (held in the
throttle slide) one notch. Examine also possible causes
in the machine, such
as
brakes binding, tight
or
dry
chains, incorrect tappet adjustment, slipping clutch, etc.
The following are the correct carburettor settings :-
Main jet :
120.
Throttle valve : 375/3t .
Needle clip in
No
. 3 groove.
Needle
jet
:
105.
Pilot jet :
25.
Full particulars of the carburettor are given
in
a
booklet issued
by
the makers, a copy of which
we
will
supply
on
request.
On the
"Crusader Sports"
the carburettor details
are:-
Choke:
li-
in.
Main jet :
140.
Throttle valve :
376/3!.
Needle clip in No. 3 groove.
Needle
jet
:
106
.
Pilot
jet :
25.
There is a
-fe-
in. heat barrier washer between the
carburettor flange and the cylinder head.
37
Air
Cleaner. The air cleaner ensures
that
no dust
or grit reaches the interior of the engine, thus preventing
rapid wear of the cylinder. Provided that the correct
carburettor jet
is
used, the air cleaner does not cause
any
Joss
of speed.
To obtain access to the air cleaner, first remove the
toolbox lid on the right-hand side of the machine. The
air cleaner cover, held in place by one central screw, will
now
be
visible. Remove this screw and press inwards
the top left corner of the cover, which will pivot
outwards
at
the bottom, enabling it to
be
removed
28
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