JAWA B, Specification And Operator'S Manual

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as the engine starts running the lever returns automatically into the horizontal
position.
The power transmission
is by means of chains. The primary chain is enclosed
by the L.H. crankcase cover and runs in oil bath. The final or secondary drive
chain which connects the gear box sprocket to the rear chain wheel is also fully
enclosed by means of a chain case and this arrangement makes the chain last
much longer. The rear chain wheel is coupled with the wheel (brake-drum) by 6
large rubber blocks fitted on the lugs of the chain wheel and engaging into the
chambers (ribs) cast in the brake-drum face. These rubber blocks also act as
efficient dampers, absorbing practically all the shocks of the power and
transmission units and has a very favourable influence on the life of the chain as
well as the vital engine parts (giving the vehicle a smooth CUSHION drive).
The spoke wheels
are interchangeable and easily detachable - the spindles being
of the push-out type. The number of spokes is 36 in each wheel - the spoke dia
being 3.5 mm - thread M4.
The brakes
are of full width hub and very efficient. The fins along the brake-drum
circumference greatly facilitates in the transfer of heat resulting from braking and
contributes to unchanged braking efficiency during continuous braking and on
long runs. The front brake is controlled by hand lever fitted on the right hand side
of the handle bars, and the rear brake by foot lever located on the right hand side
of the engine. Brakes are easily adjustable without the aid of any tools.
The frame
is built up of square section welded tubes with a pivoted rear fork.
The fuel tank is a sheet steel pressing. It is fitted, with a filler cap dia. 60 mm
(2.36 in.), and a fuel tap with filter, It has an emergency fuel reserve of approx. 1
litre (l pts.).
The dual seat
with foam-rubber padding is very comfortable. Together with the
rear suspension it offers a superior ride to both driver and the passenger. The
dual seat is detachable and covers an auxiliary box for tyre inflator and spare
parts.