S.U.
Corburetter
LUBRICATE THROTTLE CABLE TO ENSURE SMOOTH AND POSITIVE
THROTTLE OPERATION.
5.
Plastic Cap.
Do not forget to fit the washer,
as
the spindle can foul the cap
before full lift occurs, resulcing in restricted power.
Always use the correct part,
a
car
type (with
a
hole in) will
NOT
do.
6.
Piston Spring. Do not mutilate the spring by stretching, otherwise the
performance and fuel consumption of the motorcycle will be adversely affected.
If in doubt regarding the spring pressure a new one of the correct type should be
fitted.
Make sure that the ignition control
is
working properly, that the timing
is
correct
and, in particular, that
it
is
not over advanced-especially
at
idling.
AIR FILTER
THE AIR FILTER SHOULD NOT BE DISCONNECTED IN AN ATTEMPT TO
INCREASE THE MAXIMUM
SPEED
OF THE MACHINE. THE CARBURETTER
AND AIR FILTER ARE DESIGNED TO GIVE MAXIMUM EFFICIENCY AND, IN
FACT, THE REMOVAL OF THE FILTER WlLL IMPAIR GENERAL PERFORMANCE
AS THE CARBURETTER IS EXPOSED TO ROAD DUST AND OTHER FOREIGN
MATTER. IF THE AIR FILTER
IS
NOT CONNECTED THERE
IS
A
LIKELIHOOD
THAT THE FREEDOM OF THE PISTON IN THE SUCTION CHAMBER WlLL
BE
RESTRICTED.
ITS FREE MOVEMENT IS VITAL TO THE SATISFACTORY
OPERATION OFTHE CARBURETTER, OF THE ENGINE AND, THERE-
FORE, OF THE WHOLE MOTORCYCLE.
Fig.
65.
DYNAMO
(Model
E3L).
162
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