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Introduction
Congratulations on your purchase of the newest and one of the most technically advanced 2-stroke gas model airplane engines in
the world. Whether you are new to the sport of model aviation or an experienced flyer, you will enjoy the features of the new Evolution
®
GX engine.
Evolution engines are designed to be the most powerful in their class, extremely easy to start and operate, and provide years of
enjoyable service. These engines incorporate many unique features designed to ensure success with your new engine.
This user’s guide is intended to provide the basic information required to operate and maintain your Evolution GX 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 shop or flying club can put
you in touch with an experienced pilot in your area.
Before using this engine, please read these instructions carefully.
Evolution
®
Engines 2-Year Warranty
This Evolution Engines product is guaranteed to be free from
defects in materials and workmanship for a period of 2 years
from the date of purchase by the original owner. This war-
ranty is not transferable. Horizon Hobby reserves the right
to inspect any and all equipment involved in a warranty
claim. Repair or replacement decisions are also determined
by Horizon Hobby, Inc. Collateral damage of any type is not
covered under this warranty.
This warranty does not cover any component parts damaged
or changed by modification. In no case shall Horizon Hobby
or Evolution Engines liability exceed the original cost of
the engine.
This warranty does not apply to wear from normal use;
damage or defects resulting from misuse, neglect or abuse;
damage caused by customer disassembly, use of substan-
dard fuel, use of incorrect accessories (spark plug, propeller,
etc.); or damage resulting from a crash, or any use of this
engine other than for which it is specifically intended. Any of
the above will automatically void the warranty of the engine.
In that Horizon Hobby has no control over the final installation
and use of this product, the materials used in installation,
or the product in which this engine is installed, no liability
shall be assumed nor accepted for any damage resulting in
the use of this product once it is installed. By the act of using
the installed product, the user accepts all resulting liability.
If the buyer is not prepared to accept the liability associated
with the installation and/or use of this product, the buyer is
advised to return the engine immediately in new and unused
condition to the place of purchase.
Should your engine require warranty or non-warranty repair
service, please package it carefully and return it to the
address below, along with a copy of the original invoice or
receipt and a detailed letter explaining the problems. Write
your name, address and daytime phone number clearly on
the letter and return it via FedEx, UPS or insured Parcel Post
(Evolution Engines will not be responsible for product lost
en route).
For repairs not covered under warranty, please specify in your
letter whether you want an estimate of the repair charges
prior to performing the service (which may cause a slight
delay). Payment for non-warranty repairs should be made
by credit card or money order. If you have any questions con-
cerning this or other Evolution products please contact the
Horizon Product Support Team at 877-504-0233.
Evolution/Horizon Service Center
4105 Fieldstone Road, Champaign, IL 61822
877-504-0233
productsupport@horizonhobby.com
8103.3_EVO_4558.manual.indd 2 6/16/06 10:23:12 AM