Evolution Engines EVOE116GX2 User Manual
© 2007 Manufactured exclusively for Horizon Hobby, Inc.
www.evolutionengines.com 877-504-2333
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Evolution Engines
116GX2
U S E R G U I D E
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Introduction
Congratulations on your purchase of one of the newest and 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®
GX2 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. This user’s guide is intended to provide the basic information required to operate and maintain your Evolution
GX2 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.
Before using this engine, please read these instructions carefully.
Warranty Period
Exclusive Warranty- Horizon Hobby, Inc., (Horizon) warranties that
the Products purchased (the “Product”) will be free from defects in
materials and workmanship for a period of 2 years from the date of
purchase by the Purchaser.
Limited Warranty
(a) This warranty is limited to the original Purchaser (“Purchaser”)
and is not transferable. REPAIR OR REPLACEMENT AS PROVIDED
UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE
PURCHASER. This warranty covers only those Products purchased
from an authorized Horizon dealer. Third party transactions are not
covered by this warranty. Proof of purchase is required for warranty
claims. Further, Horizon reserves the right to change or modify this
warranty without notice and disclaims all other warranties, express
or implied.
(b) Limitations- HORIZON MAKES NO WARRANTY OR
REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NONINFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE OF THE PRODUCT. THE PURCHASER ACKNOWLEDGES THAT
THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY
MEET THE REQUIREMENTS OF THE PURCHASER’S INTENDED USE.
(c) Purchaser Remedy- Horizon’s sole obligation hereunder shall be
that Horizon will, at its option, (i) repair or (ii) replace, any Product
determined by Horizon to be defective. In the event of a defect, these
are the Purchaser’s exclusive remedies. Horizon reserves the right to
inspect any and all equipment involved in a warranty claim. Repair
or replacement decisions are at the sole discretion of Horizon. This
warranty does not cover cosmetic damage or damage due to acts
of God, accident, misuse, abuse, negligence, commercial use, or
modification of or to any part of the Product. This warranty does not
cover damage due to improper installation, operation, maintenance,
or attempted repair by anyone other than Horizon. Return of any
goods by Purchaser must be approved in writing by Horizon before
shipment.
Damage Limits
HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR
COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCT,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY,
NEGLIGENCE, OR STRICT LIABILITY. Further, in no event shall the
liability of Horizon exceed the individual price of the Product on which
liability is asserted. As Horizon has no control over use, setup, final
assembly, modification or misuse, no liability shall be assumed nor
accepted for any resulting damage or injury. By the act of use, setup
or assembly, the user accepts all resulting liability.
If you as the Purchaser or user are not prepared to accept the liability
associated with the use of this Product, you are advised to return
this Product immediately in new and unused condition to the place
of purchase.
LAW: These Terms are governed by Illinois law (without regard to
conflict of law principals).
Safety Precautions
This is a sophisticated hobby Product and not a toy. It must be
operated with caution and common sense and requires some basic
mechanical ability. Failure to operate this Product in a safe and
responsible manner could result in injury or damage to the Product
or other property. This Product is not intended for use by children
without direct adult supervision. The Product manual contains
instructions for safety, operation and maintenance. It is essential
to read and follow all the instructions and warnings in the manual,
prior to assembly, setup or use, in order to operate correctly and avoid
damage or injury.
Questions, Assistance, and Repairs
Your local hobby store and/or place of purchase cannot provide warranty support or repair. Once assembly, setup or use of the Product
has been started, you must contact Horizon directly. This will enable
Horizon to better answer your questions and service you in the event
that you may need any assistance. For questions or assistance,
please direct your email to productsupport@horizonhobby.com, or
call 877.504.0233 toll free to speak to a service technician.
Inspection or Repairs
If this Product needs to be inspected or repaired, please call for a
Return Merchandise Authorization (RMA). Pack the Product securely
using a shipping carton. Please note that original boxes may be
included, but are not designed to withstand the rigors of shipping
without additional protection. Ship via a carrier that provides tracking
and insurance for lost or damaged parcels, as Horizon is not responsible for merchandise until it arrives and is accepted at our facility.
A Service Repair Request is available at www.horizonhobby.com on
the “Support” tab. If you do not have internet access, please include
a letter with your complete name, street address, email address and
phone number where you can be reached during business days,
your RMA number, a list of the included items, method of payment
for any non-warranty expenses and a brief summary of the problem.
Your original sales receipt must also be included for warranty con-
sideration. Be sure your name, address, and RMA number are clearly
written on the outside of the shipping carton.
Warranty Inspection and Repairs
TO RECEIVE WARRANTY SERVICE, YOU MUST INCLUDE YOUR ORIGINAL SALES RECEIPT verifying the proof-of-purchase date. Provided
warranty conditions have been met, your Product will be repaired or
replaced free of charge. Repair or replacement decisions are at the
sole discretion of Horizon Hobby.
Non-Warranty Repairs
Should your repair not be covered by warranty, the repair will
be completed and payment will be required without notification
or estimate of the expense unless the expense exceeds 50%
of the retail purchase cost. By submitting the item for repair you
are agreeing to payment of the repair without notification. Repair
estimates are available upon request. You must include this request
with your repair. Non-warranty repair estimates will be billed a
minimum of ½ hour of labor. In addition you will be billed for return
freight. Please advise us of your preferred method of payment.
Horizon accepts money orders and cashiers checks, as well as Visa,
MasterCard, American Express, and Discover cards. If you choose
to pay by credit card, please include your credit card number and
expiration date. Any repair left unpaid or unclaimed after 90 days
will be considered abandoned and will be disposed of accordingly.
Please note: non-warranty repair is only available on electronics
and model engines.
Electronics and engines requiring inspection or repair should be
shipped to the following address:
Horizon Service Center
4105 Fieldstone Road
Champaign, Illinois 61822
All other Products requiring warranty inspection or
repair should be shipped to the following address:
Horizon Product Support
4105 Fieldstone Road
Champaign, Illinois 61822
Please call 877-504-0233 with any questions or
concerns regarding this product or warranty.
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Mounting the Engine
Most model airplane designs make provision for an engine
mount. It is extremely important that the engine mount be
securely attached to the airplane’s firewall and that the engine
is securely attached to the engine mount. Follow the instructions
included with the airplane for mounting the engine. The engine
should be fastened in place to the firewall with 4 screws. Use
¼” or 6mm screws. If you decide to fasten the engine using a
flexible motor mount, always choose parts with enough solidity
and strength. Make sure all screws are tightened and regularly
check that they remain tight and in good condition.
Important: Air is necessary to cool the engine during operation.
Make sure that sufficient air circulation through the cowling is
provided.
Throttle Linkage
Carefully attach the throttle linkage to the engine using a ball
link on the carburetor. Make sure that the linkage is free to
operate from low throttle to high throttle and confirm that low
throttle setting on the transmitter closes the carburetor butterfly
to the low idle position. Adjust the length of the pushrod until
full throttle opens the throttle fully, while low-throttle, low trim
completely closes the butterfly.
Attaching the Fuel Lines
Use medium gasoline-compatible fuel line in the fuel tank as
well as the supply line to the engine.
Selecting a Suitable Propeller
The Evolution® 116GX2 has been designed to generate maximum
power at 5800–6300 rpm, according to the type of exhaust used.
If you wish to utilize the maximum power output, choose a
propeller, which will allow the engine to reach these revolutions,
or slightly lower revolutions. (The engine will unload in the air
depending on the aircraft speed and propeller selected.)
Suggested Propeller Dimensions
Two-blade propellers:
28x10-14, 30x10-12, 32x10
We do not recommend using propellers that allow the engine to
reach more than 7500 rpm on the ground.
Control Jet System
Your engine is equipped with a unique system enabling improved
acceleration from idle to high speed. This system allows the
mixture to be controlled while the throttle valve is opening. It
will lean the mixture at low rpm and at idle. Conversely the
mixture will become richer as the throttle is opening. This system
provides better acceleration to high speed and maintains a
stable idle.
This system was developed for the Evolution 116cc engine. It
is recommended that you do not change the mixture control
leverage.
Idle
High Throttle
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