Evolution Engines 61NX - Manual (Page 2)

Mounting the Engine
Most model airplanes include an engine mount. It is
extremely important that the engine mount be securely
mounted to the airplane’s firewall and that the engine
is securely mounted to the engine mount. Follow the
instructions included with the airplane for mounting the
engine.
Important: Before each flying session, check that all
engine mounting screws are securely tightened.
Installing the Muffler
Using the included muffler mounting screws and lock
washers, attach the muffler with the included hex
wrench. Be sure the lock washers are placed over the
screws and that one gasket is placed between the muffler
and the engine. A second gasket is included as a spare.
Securely tighten both screws with moderate torque.
Important: After five runs, retighten the muffler
mounting screws. Heat and vibration from these first
few runs can cause the gasket to compress. Once the
muffler screws are retightened, they will remain tight and
leak-free until the muffler is removed. Also, tighten the
muffler thru-bolt at this time as well—loosen the lock
nut on the back of the muffler, tighten the thru-bolt via
the screwhead at the front of the muffler then retighten
the lock nut at the rear.
Throttle Linkage
A clevis is recommended for attaching the throttle
linkage to the throttle. Attach the throttle linkage to the
hole in the throttle arm (see photo above).
Turn on the radio. With the throttle stick at 1/2 throttle,
install the arm on the servo so that the arm is 90° to the
throttle pushrod.
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Securely tighten all engine mounting screws and re-check tightness
before each flying session.
Attach the linkage to the throttle arm.
The muffler mounting accessory package includes mounting screws
(2), lock washers (2), muffler gaskets (2) and an L- wrench.
Introduction
Congratulations on your purchase of the newest and one
of the most technically advanced 2-stroke model airplane
engines in the world. Whether you are new to the sport of
model aviation or are an experienced flier, you will enjoy
the features of the new Evolution
® Engines NX Engine.
The Evolution NX Engine is designed to be the most
powerful in its class, extremely easy to start and operate,
and provide years of enjoyable service. It incorporates
many unique design features, such as our Set Right
™
needle valve assemblies. Every feature is designed to
ensure success with your new engine.
This user’s guide is intended to provide the basic
information needed to operate and maintain your
Evolution NX Engine.
Every Evolution engine has been baseline adjusted
at the factory and is ready to fly . We recommend a short
break-in period to become familiar with the engine.
Important: While the Evolution engine is extremely easy
to operate, if this is your first experience flying a model
airplane, it is highly recommended that you have the help
of an experienced modeler during the first few flights.
Your local hobby store or flying club can put you in touch
with an experienced pilot in your area.
Low-Speed Needle
High-Speed Needle
Muffler
Muffler
Glow Plug
Glow Plug
Throttle Arm
Muffler Nipple
Fuel Nipple
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