User Manual

4
Mounting the Engine
All model airplanes include an engine mount of some
type. It is extremely important that the engine be securely
mounted to the airplane’s engine mount. Follow the
instructions included with the airplane for mounting
the engine.
WARNING: 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 your choice 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. The
exhaust outlet of the muffler can be rotated to allow the
exhaust outlet to be repositioned for various applications.
1. Loosen the lock nut on the back of the muffler and then
loosen the assembly screw.
2. Rotate the rear half of the muffler to the desired
position.
3. Tighten the assembly screw first and then tighten the
lock nut.
WARNING: Read and follow all instructions and
precautions before use.
Failure to do so could result in product malfunction,
damage and injury.
WARNING: This product can become extremely
hot when in use, which could lead to burns.
NOTICE: Only use this product with parts specified in the
product literature.
Note: 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, if you have chosen the tube-
style muffler, 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.
EVO Team Tip:
One of the many causes of a muffler loosening is
the paper gasket material becoming crushed by
the muffler mounting to the engine.This leads to
the screws actually loosening on their own. The
surfaces, engine crankcase mount and muffler
mounting face, are machined surfaces, so there
should be little, if any, leaks between these two
surfaces. We suggest mounting the muffler without
the included gasket.
Securely tighten all engine mounting screws and re-check tightness
before each flying session.
The muffler mounting accessory package includes mounting screws
(2), lock washers (2), muffler gaskets (2) and an L- wrench.