O.S. Engines FS-40S-CX - Manual (Page 14)

In the interests of a long working life and high
performance, every internal-combustion engine
needs to be "run-in" (or "broken-in" as the
procedure is also known). This means giving the
engine extra care and attention during the first
hour or so of its operational life. New parts need
to become "bedded-in", i.e. smoothed and
aligned to reduce friction and avoid distortion.
For this to take place, the engine must not be
overloaded or run too fast. The essential
ingredients here, are ample lubrication and
cooling. Such a condition is achieved by having
the engine operate on an extremely rich needle-
valve setting : the excess oil not only provides an
abundance of lubrication; it also conducts away
heat from the surrounding metal and this is
further assisted by the partial evaporation of the
alcohol content of the fuel.
STARTING, RUNNING AND ADJUSTMENT
The somewhat violent changes of vehicle
attitude that occur in off-road running,
combined with the fact that, in buggy type
cars, the fuel tank is often located some
distance from the carburettor, means that fuel
'head' at the carburettor can vary and upset
running.Therefore,it is recommended that a
muffler pressurized fuel feed system be used.
Never run your vehicle without the air cleaner.
Dust and dirt that may otherwise be drawn into
the engine will rapidly shorten its life.
PRESSURIZED FUEL SYSTEM
●
●
Fuel Tank
Silencer
Silicone tubing
Connect suitable length of
Silicone tubing between fuel
tank and silencer.
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