O.S. Engines FS-40S - Manual (Page 13)

Fuel Can Filter
3
11 Silicone tubing
This is required for the connection
between the fuel tank and engine.
10 Fuel can filter
Install a filter in the outlet line of your
refuelling container to prevent entry of
foreign matter into the fuel tank. (Refer to
of STARTING THE ENGINE section.)
9 Electric starter and starter battery
An electric starter is recommended
for starting.
FUEL AND PRESSURE LINES
Fuel level
Muffler to tank pressure line
Connect suitable lengths of silicone tubing, as
illustrated, after installing the engine.
Attention to tank height
Note: When cutting silicone tubing···
Locate the fuel tank so the top of the tank is
5-10mm(1/4-3/8") above the level of theneedle-valve.
5-10mm
Silicone tubing
Use knife or razor blade
Do not use wire cutters
or pliers.
*If you should need to clean the silicone tubing, use methanol
or glow-fuel, not gasoline or kerosene.
Silencer (muffler) pressurized fuel system
To reduce variation in fuel "head" and ensure steady
fuel delivery at the carburettor, it is advisable to employ
a silencer (muffler) pressurized fuel system, i.e. to use
the silencer outlet nipple to pressurize the fuel tank as
shown at left.
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