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brake in the B.S.A. WINGED WHEEL is applied
when the lever is pulled towards the handlebar and
released when the lever is released.
PREPARING FOR THE ROAD.
Petroil.
r
The B.S.A. WINGED WHEEL engine operate:
on the PETROIL system, which means that engine
oil is dissolved in the pctwl and automatically
provides correct lubrication without any further
responsibility on the part of the rider, beyond that
of supplying a. mixture of a suitable strength when-
ever the petrol tank is refilled.
Instructions for the correct proportions of 'peh'al
and oil are marker] on the tank filler cap (see FigZ).
whichalso incorporates a measure, and it will benoted
that two fills of oil from this measure are correct
{or half a gallnn of petrol, the resultant quantity
of PETROIL mixtme being sufficient to fill the tank.
The mixing of the petrol and oil should preferably
be carried out in a separate container before being
put in the tank. to ensure that the oil is thoroughly
dissolved, but if it is not practicable to do this, the
oil should be poured into the tank first. followed by
the petrol, and the bicycle should be vigorously
shaken sideways a few tima in order to make sure
that the two liquids are properly mixed.
IMPORTANT.—— Do not lay machine on i1: side [or
the purposs of adjustment or tyre repair without
first removing or draining carburetter.
The
petroI—oil mixture is liable to drain out of the Ga:-
buretter into the brake drum where the oil content
will reduce braking efficiency.
12
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