Introduction – O.S. Engines 65LA User Manual
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INTRODUCTION
THE MAX-40LA, 46LA and 65LA have been developed
to meet the requirements of beginners and sport flyers.
Of modern design and having a separate needle-valve
unit mounted at the rear, where manual adjustment is
safely remote from the rotating propeller, they offer the
advantages of reliability and easy handling, at lower
cost. Like all O.S. engines they are built to standards
of engineering excellence that have evolved through
more than 60 years' experience in the design and
production of model internal-combustion engines.
Advanced modern precision machinery, top quality
materials and the efforts of highly skilled craftsmen and
technicians are combined to ensure a continuation of
the levels of performance, durability and reliability for
which O.S. is world famous.
The MAX-46LA has a larger cylinder diameter, but both
the 40LA and 46LA engines have the same external
dimensions.
The 'midnight blue' external finish may be
decolorized by very high surface temperature or
by certain solvents. Such decolorization does not
affect engine perfor-mance, however.
Cylinder head
Carburettor
Silicone Tube
Crankshaft
Propeller nut
Propeller washer
Drive Hub
Crankcase
Needle valve
Cover Plate
Fuel outlet
Fuel inlet
Glowplug
Connect the short length of fuel tubing supplied
securely between the fuel outlet and the fuel inlet. In
the event of the tube becoming damaged, it should be
replaced with a suitable length of best quality 5mm
ODX2mm ID silicone tubing. Use similar material to
connect the fuel inlet nipple to the fuel tank.
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