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brake in the B.S.A. WINGED WHEEL is applíed
:
when the lever is pulled towards the handlebar and
relea,sed when the lever is relased.
PREPARING FOR THE ROAD.
Petroíl.
The B.S.A. WINGED WHEEL engine operates
on tho PETROIL system, which means that engino
oil is dissolved in the petiol and automaticauy
provjdes correct lubrication without any íurther
responsjbility on the part of the rider, beyond that
of supp]ying a míxture of a suitable strength when-
ever the petrol ta,rik is refilled.
Instructions íor the correct proportions of petrol
alid oil are marked on the tank filler cap (see Fig2),
whicha.lsoincorporates a mea§ure, a,nd itwi]] benoted
that two fills of oil £rom this measure are correct
for half a gallon of petrol, the resultant quantíty
of PETROIL mixtuie being sufficient to fi]l the ta,nk.
The mixing of the petrol and oil should preíerably
be carried out in a separate container beíore behg
put in the tank, to ensure that the oil is thoroughly
dissolvod, but íf it is not practicable to do thís, the
oil should be poured into the tank first, followed by
the petrol, and the bicycle should be vigorou§1y
shaken sidewa.ys a few times in order to make suro
that the two liquids are properly mixed.
"PORTANT.- Do not lay machine on its síde íor
the purposes of adjustment or tyTe repair without
first removing or drainíng carburetter.
The
petrol-oil mixture is liaible to draili out of the car-
buretter into the brake drum where the oil content
wnl reduce braking efficiency.
l2
Shell
TABLE I.
RECOMMENDED OILS.
(Summer and Winter)
Brand
Grrie
MobiloiI
BB
Essolube
Ebso 40
Castrol
XXI.
B.P.
Energol SAE 4O
XlOO40
*We also approve theuse®í ±he petrol/oíl mixture
No. l aa supp1íed by the Shell-Mex and B.P. Two-
Stroke Petroíl Servïce.
Oll íor Transmisslon.
There is a separato oil supply for the transnrission
gear, and beíore starting íor tho first time thͧ must
be filled to the corr«t level.
Filler phg Á, Fíg. 6,
i§ províded for thí9 purpose.
The correct quantity of oil is } pút (approx. l!
measures), and the recommoI]ded grades aro tho
same a.s thme givon ín Table l above.
Fig. 6.
Gearcase filler cap.
l3
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