O.S. Engines 50SX - Manual (Page 13)

Suggested fuel tank capacities are listed opposite.
These will allow 12-13 minute flights.
Locate the fuel tank so that the top of the tank is 5-
10mm (1/4-3/8") above the level of the needle-valve.
Be sure to use a pressurized fuel system by
connecting the muffler pressure nipple to the vent-
pipe of the fuel tank.
Suggested Fuel Tank Capacities
50SX
40
¡ 46FX
approx 300cc
approx 350cc
approx 450cc
61FX
91FX
FUEL TANK LOCATION
Attention to tank height
•
Fuel level
10mm
Model engines generate considerable heat.
Do not touch any part of your engine until
it has cooled.
Contact with the muffler (silencer), cylinder
head or exhaust header pipe, in particular,
may result in a serious burn.
Keep your hands and face away from
exhaust gas or you will suffer a burn.
Reminder!
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