User Manual

the engine is running.
▀ Ensure the aircraft is properly secured when starting or operating the engine as it can
develop tremendous thrust.
▀ Operate the engine in an open area. Never operate indoors.
▀ Always stand behind the propeller when operating the engine.
▀ Use a heavy duty starter stick, or a properly sized electric starter to flip and/or start the
engine. Use heavy leather work gloves when flipping the prop.
▀ Stay away from the prop while operating the engine. Do not wear loose clothing near
the engine or prop. Do not allow people to stand in front or beside the propeller when
the engine is operating.
▀ Do not run the engine near loose material such as dirt, sand, gravel, power, ropes,
cords, etc. Any loose material can
be drawn into the turning prop causing injury or damage.
▀ Keep people and pets at least 50 feet away when operating the engine.
▀ Always use the proper size propeller. Never use damaged, modified or repaired
propellers.
▀ Always use the correct type and length of propeller bolts. Never use spacers behind the
propeller.
▀ The spinner cones must not touch the propeller.
▀ Some thinner props may require the use of shorter prop bolts, especially if not using a
spinner back plate. Ensure
your prop bolts do not bottom out in the propeller hub.
▀ Check that the propeller bolts are tight before every flight.
▀ Always install an ignition kill switch to stop the engine.
▀ Carburetor linkages should be adjusted so that the engine will stop when the carburetor
is completely closed.
▀ Gasoline is extremely flammable. Do not smoke in the area of your engine and gas
supply. Also sparks can come from electrical contacts on fuel pumps, battery chargers,
and other support equipment. Always have a fully charged fire extinguisher nearby and
ready.
▀ Fuel your aircraft when the engine is cool to the touch.
▀ After running your engine, turn your prop several revolutions. This will ensure that your
ignition system is discharged.
▀ Never turn the engine over without ensuring the ignition system is off.
▀ The Ignition system develops high voltages. Never touch it during operation.
▀ Always fly in accordance with the safety runs, regulations and recommendations of the
AMA (American Modeling Association). Read and understand all of the safety material on
their website www.modelaircraft.org before using this engine. In Canada, the representing
body is MAAC (Model Aeronautics Association of Canada) and their website is
www.maac.ca
Engine Installation
If using mounting brackets, they should be installed with the closed end to the firewall and
the open end to the engine.If using the mounting stand-offs, the cut ends should be
mounted to the engine. If additional mounting height is needed, it should be placed
between the mounting hardware (brackets / stand-offs) and the firewall. Make sure that all
spacing is flat and of the same size and surface plane so as not to induce any twisting
force into the mounting hardware or damage to the engine or mounting hardware failure
may result. Spacing should never be used between the mounting hardware and the
engine. In all cases, the firewall / airframe mounting surface must be absolutely flat or