Evolution 15cc User manual

15cc
Evolution®Gas Engines
GAS/PETROL

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NOTICE
All instructions, warranties and other collateral documents are subject to change at the sole
discretion of Horizon Hobby, Inc. For up-to-date product literature, visit horizonhobby.com
and click on the support tab for this product.
The following terms are used throughout the product literature to indicate various levels
of potential harm when operating this product:
NOTICE: Procedures, which if not properly followed, create a possibility of physical property
damage AND a little or no possibility of injury.
CAUTION: Procedures, which if not properly followed, create the probability of physical
property damage AND a possibility of serious injury.
WARNING: Procedures, which if not properly followed, create the probability of property
damage, collateral damage, serious injury or death OR create a high probability of
superficial injury.
Meaning of Special Language
WARNING: Read the ENTIRE instruction manual to become familiar with the features
of the product before operating. Failure to operate the product correctly can result
in damage to the product, personal property and cause serious injury.
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.
Do not use with incompatible components or alter this product in any way outside of the
instructions provided by Horizon Hobby, Inc. This manual contains instructions for safety,
operation and maintenance. It is essential to read and follow all the instructions and warn-
ings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid
damage or serious injury.
CAUTION: This product can become extremely hot when in use, which could lead
to burns.
Age Recommendation: Not for children under 14 years. This is not a toy.
Safety Warnings
Model engines produce a substantial amount of power, which can create unsafe situations if not
used correctly. Always use common sense and observe all safety precautions when operating,
handling or performing any procedure involving your engine. Failure to follow safety precautions
could result in serious injury and property damage.
• Always ensure spectators, especially children, are at least 30 feet away when running
the engine.
• Always ensure that the propeller is securely attached to the engine shaft and all retaining
fasteners are tightened properly before EACH flight. Use of blue threadlock to tighten nuts
is advisable.
• Always keep small parts out of the reach of children as they can be choking hazards.
• Always secure the airplane before powering the engine.
• Always keep your face and body away from the path of the propeller blades when starting
or running your engine.
• Always stand behind the propeller when making carburetor adjustments.
• Always wear safety glasses or goggles when starting and running your engine.

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• Always keep your fuel in a safe place away from sparks, heat or anything that can ignite.
• Always ensure the aircraft is secure and will not move once the engine is started.
• Always rebind your transmitter to your receiver(s) after setup and before rst ight.
• Always ensure the throttle failsafe is set to low throttle in your transmitter.
• Always perform a range check prior to ight.
• Always cut off the fuel supply (pinch or disconnect the fuel line to the carburetor) or use
the throttle linkage to shut off the air in order to stop the engine.
• Never use hands, ngers, or any other body part to stop the propeller.
• Never throw any object into a propeller to stop it.
• Never run the engine in the vicinity of loose small objects, such as gravel or sand, to avoid
the propeller uncontrollably throwing such materials.
• Never wear loose clothing or a loose neckstrap when operating your model engine as these
items could become entangled in the propeller.
• Never have loose objects such as screwdrivers, pencils, etc. in your pockets when operating
your model engine. These could fall into the propeller.
• Never allow fuel to come into contact with eyes or mouth. Gasoline and other fuels used
in model engines are poisonous.
• Always ensure gasoline and fuel are stored in a clearly marked container away from
the reach of children.
Precautionary Guidelines
• Always mount the engine securely on a bench mount or high-quality engine mount.
• Always use the correct size and pitch of propeller for your engine. Refer to the Propeller Chart
in this manual.
• Always conrm proper balance of your propeller prior to installation of the engine. Failure
to do so could result in damage to the engine and/or airframe.
• Always utilize an electric starter to start your engine.
• Always discard any propeller that is nicked, scratched, cracked or damaged in any way.
• Always run your model engine in a well-ventilated area. Model engines can produce possibly
harmful carbon monoxide fumes.
• Always store your fuel safely in a sealed, water-resistant container.
• Always store fuel in a cool, dry location. Do not allow fuel containers to come in direct
contact with concrete, as the fuel may absorb moisture.
• Always responsibly discard fuel if there is condensation and/or water inside the fuel
container.
• Never return unused fuel from the fuel tank back into the fuel container.
• Never attempt to repair or modify a propeller beyond its intended use.
• Never handle model engines, mufers and/or tuned pipes until they have had time to cool.
They can become extremely hot when in use.

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Introduction
Congratulations on your purchase one of the exciting new engines in the Evolution®small block
gas engine series. All of the Evolution brand gas engines are designed from the start to provide
you with excellent performance at a fraction of your previous operating costs. We have painstak-
ingly designed and tested each engine to insure a hassle-free experience without giving away
anything in expected performance or durability. This manual, when read and followed, will guide
you through the simple steps to your success. Welcome to the Evolution family.
Small Block Gas Engine Design
Starting with our already proven glow engines enjoyed by thousands around the world, we en-
deavored to take that excitement and experience into the realm of gasoline fuel to provide you
with a complete package; great performance and low cost of operation.
Step 1 Start with a great engine. The Evolution glow engines have provided thousands of users
excellent performance.
Step 2 Design a new carburetor system that will be reliable and provide for hassle-free use by
the owners. This new carburetor, with already proven technology, was modified to fit in
the available space in front of the cylinder and the unique needs of a gasoline fueled
engine. Built on to the front of the carburetor is a crankcase-pressure driven regultar
system. This system takes fuel from a muffler pressurized tank and meters it properly in
all attitudes of flight. A new cat’s eye style fuel metering system was added to allow for
more controllability to the low and mid-range throttle positions.
Step 3 Design the proper muffler system to handle the extra heat and expansion of the burnt gas
mixture when compared to a glow system. These changes included adding volume to the
muffler, including a much larger muffler through bolt to handle the heat and stress, and
enlarging the outlet of the muffler to minimize backpressure while still providing noise
reduction.
Step 4 Design operating accessories that enhance the user experience. During our extensive
2 1/2-year testing program we discovered a lot of new techniques and obstacles that are
unique to gasoline fueled small block engines.
• Because the amount of fuel consumed is one third that of a comparable sized
glow engine, the construction and reliability of the fuel delivery system to the
carburetor becomes three times as critical. Microscopic pieces of dirt that used
to safely pass through the larger fuel passages of a glow carburetor will wreak
havoc on a gasoline system. By using a quality inline filter like our Inline Filter
(EVOA105) we can take care of the dirt problem. One of these is included with
your engine.
• The same holds true for air bubbles from the tank or any small leak in the fuel
tubing; what would pass harmlessly through a glow carburetor simply is not tol-
erated in a gasoline system because the air bubbles are effectively three times
the size they used to be. We have developed and sourced an excellent felt filter
clunk that, when used in the tank, stops all the air bubbles from moving into the
fuel delivery tubes. This felt clunkis critical to successful and reliable operation.
One of these is included with your engine.
• We found that high mufer temperatures would destroy normal Tygon®tubing
(the go-to choice for gasoline engines) within minutes. We found that Neoprene
tubing would withstand the temperatures but it tended to degrade quickly in
use. We sourced the proper sized uoroelastomer tubing (FKM tubing), which
withstands not only the high temperatures, but its durability is much greater
than that of either Tygon or Neoprene. The added bonus is that it fits and holds
well to the fuel fittings without any need for additional wire or tie-wrap keepers.
We have included a supply of this tubing with your engine.

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High-Speed
Needle
Muffler
Spark Plug Muffler Nipple
Fuel Nipple
Installing the Engine
1. Secure the engine mount on the airplane
firewall. Tighten the engine mount screws
in the firewall.
2. Install the engine on the engine mount
according to the airplane manufacturer’s
instructions.
WARNING: Tighten all engine
mounting screws before each flight. If
you do not tighten the engine
mounting screws, the screws may
vibrate loose and cause the engine to
separate from the fuselage.
Low-Speed
Needle
Muffler Spark Plug
Throttle
Arm
Included Content
ENGINE
• Mufer (EVOG15601)
• Mufer Screws & Gasket (EVO9191A)
• Spark Plug (EVOG10350)
• Evolution/Spektrum™Telemetry RPM
adapter cable (EVOA107)
• Medium Gas-FKM Fuel Tubing (EVOA104)
• In-Line Fuel Filter (EVOA105)
• In-tank Felt Filter/Clunk (EVOA106)
OPTIONAL ITEMS
• Tachometer (HAN156)
• Propeller 13 x 6 (EVO13060) for break-in;
14 x 6 (EVO14060) for normal ight
• Optical Electronic Ignition Kill Switch
(EVOA100)
• Evolution Synthetic 2-Cycle Oil, (EVOX1001Q)
• Ultra Fuel Pump (HAN155)

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1. Use a secure method to attach the
throttle linkage to the throttle arm on the
carburetor.
2. Power on the transmitter and receiver.
3. Move the throttle stick to the middle stick
position.
4. Adjust the throttle arm so the arm is 90
degrees to the throttle pushrod.
5. Center the throttle servo. Install a servo arm
with a hole 11mm (7/16 in) from the center
of the arm.
6. Use a clevis to attach the throttle linkage to
the servo arm.
11mm
1.5mm
Installing the Muffler
The muffler mounting accessory package
includes mounting screws (2), lock washers
(2), muffler gaskets (2) and L- wrenches (2).
1. Put a lock washer on each of the muffler
screws. Push the muffler screws through
the cylinder head.
2. Place the muffler gasket over the engine
mounting screws.
3. Align the mufer gasket with the exhaust
opening and the muffler mounting screws.
4. Tighten the muffler screws.
IMPORTANT: Tighten the muffler screws after
five tanks of fuel. The muffler screws may
loosen from heat and vibration.
It is important that you tighten the muffler
through bolt after each of the first three,
full tank engine runs. The heat will cause
expansion of the through bolt and muffler
body parts. After the third tightening, no
further muffler loosening should occur.
To tighten the muffler through bolt:
1. Loosen the muffler lock nut.
2. Tighten the muffler through bolt screw.
3. Tighten the mufer lock nut.
Connecting the Throttle Linkage

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Adjusting the Throttle Opening
1. Lower the throttle and center the throttle
trim.
2. Adjust the length of the throttle linkage
until the throttle is open 1mm.
3. Move the throttle stick up to conrm the
throttle opens. If the throttle does not
open, reverse the throttle channel in your
transmitter.
4. Move the throttle stick and throttle trim
down to confirm the throttle closes.
5. If you reversed the throttle channel in your
transmitter and you are using a 2.4GHz
radio system, you must re-bind your radio
system to set the correct failsafe position.
Attaching the Fuel Lines
Fuel Line
Vent Line
1. Connect medium diameter FKM fuel line to
the carburetor and the fuel tank supply line.
2. Connect medium diameter FKM fuel line
to the muffler pressure nipple and the fuel
tank vent line.
Vent Line
Fuel Line
RECOMMENDED PROPELLERS
13 x 6–15 x 6 (14 x 6 has tested to be the
best performer with this engine, although
the performance is very good throughout the
recommended range)
1. Remove the prop nut and prop washer from
the crankshaft.
2. Install the spinner backplate, followed by
the propeller, prop washer and prop nut.
3. Cover the propeller with a cloth and use an
adjustable wrench to tighten the prop nut.
Aftermarket muffler (BIS04091) shown.
Not included.
4. Install the spinner cone. Make sure the
spinner cone is not touching the propeller.
Trim the propeller opening if necessary.
5. Tighten the spinner screw(s) to secure the
spinner cone.
Attaching the Propeller and Spinner

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Connecting the Electronic Ignition
The Evolution Electronic Ignition Assembly is designed and engineered specifically for the
small block engine series. It is smaller and lighter so it fits into tighter spaces of the airplanes
the engines are designed to power. The battery voltage required is between 4.8V (4-cell Ni-MH
pack) and 8.4V (2S Li-Po battery) and no voltage regulators are needed with any of these
batteries. We recommend a 2S Li-Fe battery (such as the Team Orion®Avionics Li-Fe Receiver
Pack 1300mAh 6.6V (ORI60503)) and we have done extensive testing with these packs. The
maximum amp draw at full throttle is 450mAh, and our more typical average has been between
250–300mAh.
The assembly consists of:
• Ignition module with battery connector, ignition sensor connector, tachometer readout
connector and spark plug connector
• Ignition sensor (already attached to your engine)
• Sensor magnet (already installed in the prop drive hub of your engine)
Mounting Your Electronic Ignition
• You can mount the unit in any orientation
and place that is convenient for your
installation. The module is sized to con-
veniently fit into the tank compartment of
most glow powered airplanes alongside or
underneath the recommended fuel tanks.
You can also mount it to the rewall or
under the engine firewall extension if your
airplane is so equipped. Keep in mind that
it should be mounted away from the heat of
the muffler.
• Secure the ignition module to your chosen
location with foam padding to provide
vibration isolation. We typically mount it
conveniently with tie wraps after wrapping
the ignition in lightweight 1/4-inch foam
rubber.
• You may need to route both the spark plug
connector wire and the ignition sensor wire
through the firewall, so be sure to plan
ahead and provide adequately sized holes
that will allow you to pull either the ignition
sensor connector or the spark plug cap
connector through the holes for later
ignition removal.
• Mount a good quality radio receiver type
switch between the ignition unit and the
battery. Mount this switch in a convenient
place on the outer fuselage close to the
front of the airplane to make it easy to turn
the ignition on and off. Being able to easily
shut off the ignition is an important safety
consideration.
• For added security and controllability, add
an additional radio-operated kill switch
(such as the Optical Ignition Kill Switch
EVOA100) between the ignition battery con-
nector lead and the ON/OFF switch.
• Connect the ignition sensor wire to the
ignition module. The sensor wire will only
fit into one of the connectors so you cannot
connect it wrong.
• Connect the ON/OFF switch to the battery
connector lead of the ignition module. This
connector is the red connector.
• If desired, you can connect either the
separately available tachometer readout or
the included Evolution/Spektrum Telemetry
Adapter Cable (EVOA107) to the tachometer
readout connector. Plug the other end of
the adapter cable into your telemetry mod-
ule’s rpm input port.
• Connect the spark plug connector to the
spark plug. This adapter has a push on and
rotate clockwise 1/8 turn locking
mechanism to insure a solid connection.
Make sure you charge your ignition battery
and are now ready to operate your electronic
ignition with the engine.

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Fuel
This engine requires a mix of 20:1 gas to oil
lubricant ratio for break-in and a mix of 32:1
gas/oil ratio for normal operation in order to
last a long time.
The needle bearing at the bottom end of the
conrod depends upon this lube ratio to oper-
ate properly.
Do not go higher than a 20:1 gas/oil ratio
for the first gallon of fuel. After this you may
decrease the oil content to a 32:1 gas/oil ratio
if desired. Do not go higher than a 32:1 gas/
oil ratio or the warranty on your engine will be
voided.
To properly mix the fuel, for a mix of 20:1 gas
to oil, add 6.75 oz of good quality 2-stroke
oil to one gallon (or 53 mL of oil to one liter)
of 87–93 octane fuel. (EVOX1001Q Evolution
2-stroke oil is recommended) We prefer to
add the oil first to our fuel container and to
add the gasoline second. This helps to insure
a good mixture of the oil with the fuel at the
outset.
We have tested our own Evolution 2-stroke oil,
Valvoline, Shell, RedLine and Husqvarna oils.
Other quality 2-stroke oils should work as
well. Do not use Amsoil synthetic oil in
any form.
Fuel Delivery System
It is very important to properly construct
your fuel supply system to the engine to
avoid operating problems. Our experience has
shown that many seemingly engine related
operating problems are in fact fuel delivery
problems, not engine related
problems.
Fuel Filtering - Because of the incredibly small
amount of fuel that is being used by this
engine, filtration of the fuel is mandatory in
three different spots in the system:
1. Between the fuel jug and the tank.
2. Within the fuel tank itself (with a ltered
clunk EVOA106).
3. Between the fuel tank and carburetor (with
an in-line fuel lter EVOA105).
Both of these lters (2 and 3) are included in
the engine package.
Tank Location - Because muffler pressure
is used to provide the pressurization to the
fuel regulating and metering carburetor, the
tank still needs to be mounted in line with
the carburetor, and as close to the rear of the
engine as possible. Care taken in mounting
the tank as described will provide trouble free
operations in all flight attitudes.
Tank Choice and Construction – Choose a
tank between 8–14 oz (240–420 mL). These
tanks will yield 12 minutes (for the smaller
tank) to 25 minutes (for the larger tank) of full
throttle flying time.
• Ensure you use a tank stopper made for
use with gasoline and/or smoke oil.
• We suggest a three-line tank system; one
for the line to the carburetor with the clunk
attached internally, one for the muffler
pressure to the tank, and one dedicated
to fueling/defueling the tank. We try to
avoid the T-fittings and other inline valves
because they can be a possible source of
air/fuel leaks.
• Ensure you use the provided FKM tubing in
all the plumbing of the tank, externally and
internally.
• Ensure you use the included felt lter clunk
inside the fuel tank.
• Ensure you use the included inline lter
between the tank and the carburetor.
• Ensure there is a good seal system for
the dedicated fueling/defueling line. We
highly recommend the HAN116 Fuel Filler
Assembly for its sleek look and ease of use
when installed on your airplane.

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Engine Break-in
Your new engine needs to be broken-in to ensure a long life of all the components. This engine
features a piston ring design, which requires a specific break-in procedure to ensure a tight seal
between the piston ring and liner. For this to be accomplished, this process requires repeated
heating and cooling cycles, and must be done at a needle setting that is slightly rich of peak to
ensure the ring expands and contracts. The ring needs to “grow” into the liner for it to develop a
good seal.
Breaking in the piston ring and liner by running it too rich does not provide the necessary parts
growth to accomplish the needed piston ring and liner fitting. However, using too lean of a
setting will cause the ring to become damaged by overheating. Please follow the steps below to
ensure a successful experience.
Important considerations during break-in
• Perform the break-in process with the
engine mounted on your airplane. There is
no need to bench-run the engine prior to
mounting it on your airplane.
• Use the suggested break-in prop to begin
your break-in process. This provides a light
load and high rpm that, when matched
with the heat of the engine, will break in
the engine properly.
• Use the proper recommended fuel with a
20:1 gas to oil ratio for the rst gallon of
operation.
The proper break-in flight procedure is to fly
the airplane at full throttle through a series
of gure eight maneuvers (i.e. Cuban Eight).
These maneuvers in particular benefit the en-
gine because, when climbing, the additional
load on the engine will increase the tempera-
ture and, when diving, the lighter load and
higher rpm will decrease the temperature,
thus providing the heating/cooling cycles
required for the break-in process.
Break-in process
• Firsttankoffuel: Set the high-speed
needle valve at 1.25 turns out and use the
suggested break-in prop. Run the engine
on the ground for its first tank of fuel and
DO NOT go above half throttle. Cycle the
throttle between idle and half throttle every
minute.
• Second tank of fuel: Tune the needle valve
to be slightly rich of the peak RPM at full
throttle without a drop in RPM. Do not run
at full throttle on the ground for more than
30 seconds at a time. Tune the low speed
needle valve for a smooth transition from
idle to mid-range, go back to full throttle
to confirm the main needle valve setting
and then fly. During this flight, be sure to
be conscientous of extended periods of
heating the engine. Be sure to mix-in some
cool-down dives and lower-throttle flying.
• Third tank of fuel: Fly the engine at a high
throttle while performing the recommended
figure eight maneuvers. This will help the
piston ring and cylinder liner to expand and
contract; helping the breaking-in process.
Tune the needle valve to be slightly rich of
the peak RPM as necessary.
• Fourth tank of fuel: Select one of the rec-
ommended propellers for normal operation
and mount it on your engine. Tune the main
needle valve to be slightly rich of the peak
RPM and the low speed needle valve for a
smooth transition from idle to full throttle
and continue to break-in the engine in
flight.
Do not worry about an engine setting being
slightly rich during this process. When set
correctly, the engine will occasionally sound
as if it is misring (which it is). During the
climbing maneuvers this should go away and
might return during the diving maneuvers. If it
does not go away during the climbs, land the
airplane and lean the high-speed needle by
1–2 clicks, then take off and y again. Enjoy
the break-in process—you are doing a lot of
flying.
Continue to fly the airplane through the first
gallon of fuel and then change the fuel mix-
ture to 32:1 for continued operation.

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Now that you have the baseline needle valve
settings, you are ready to start your engine for
the rst time. With the 15GX it is very
important to allow the temperature to
stabilize above 170°F (75°C) before making
any adjustments; adjusting prior to the engine
warming up will lead you to inaccurate
settings. As the engine warms up you will
notice the rpms naturally rising.
If you do not have a temp gun or have sensors
installed on your engine, allow the engine to
run at half throttle for at least 45 seconds be-
fore attempting to set the high-speed needle.
If you have accurately set the low-speed
needle as described you should not need to
adjust it.
Priming
1. Make sure your ignition is off.
2. Open the throttle fully and, either by hold-
ing a finger over the carburetor intake or
the mufer exhaust, ip the propeller 6
times.
3. Remove your nger from either the carbure-
tor or muffler exhaust and flip the engine
another 6 times.
4. Close the carburetor completely with your
throttle stick and then open it two detents
from closed. This will allow the engine to
start at a high throttle setting.
Because each fuel system and installation
is slightly different, you may find the need
to modify the above procedure for your
individual setup. The above procedure should
work for most installations.
Starting and Operating the 15GX Engine
Telemetry is a huge asset to help you tune
your engine. The ignition module is even
capable of communicating with Spektrum
telemetry systems directly so you won’t have
to add an additional RPM sensor. You will
need to connect the Evolution Ignition
Telemetry Adapter (EVOA107) between the
RPM port on the ignition unit and the RPM
port on your Spektrum telemetry module in
order to utilize this feature. Telemetry systems
other than Spektrum may require a dedicated
RPM sensor.
We recommend using the Spektrum DSMX Full
Range Aircraft Telemetry Module (SPM9548)
in conjunction with the included adapter. This
system allows you to see real-time RPM and
temperature readings from the engine.
The temperature sensor should be wrapped
around the base of the spark plug on the
cylinder head. Using telemetry gives you an
accurate representation of actual temperature
and rpm figures during use, and warnings
can be set to go off if your engine is getting
too hot.
The temperature range can be 275–300ºF
on average. Set your maximum temperature
warning to go off if the engine exceeds 350ºF.
If your engine is continually near this peak
temperature or higher, immediately decrease
throttle to bring the temperature down. If this
continues to occur, land the airplane and add
additional baffling to your cowl. It is not good
for the engine to run at temperatures this high
and could cause damage if not attended to.
Telemetry
Until the engine is broken in, use an electric
starter to start the engine. Once it is fully
broken in it can be started by hand, but it is
easier and safer to start the engine with an
electric starter.
1. Turn on the ignition.
2. Rotate the propeller in a backwards direc-
tion against compression.
3. Push the starter rmly against the nose
cone and engage. The engine should start
relatively quickly, within 1–2 seconds. Once
the engine starts disengage the starter.
4. Let the engine run at mid-throttle for 45
seconds to stabilize the temperatures.
a. If the engine doesn’t start quickly, disen-
gage the starter. Continuously running
the starter can flood the engine.
b. Check to make that fuel is moving
through the carburetor system.
c. If the engine appears not to have any
fuel, repeat the priming procedure
above.
d. Repeat 1–4 of Starting and Running the
Engine.
Starting and Running the Engine

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Because of the small amount of fuel actually
needed for this engine, needle adjustments
need to be made in small increments. It may
take 5 seconds or more before you will notice
a running change in your engine after making
it. Be patient. Use a tachometer, this is a very
important part of properly setting your high-
speed needle valve.
The procedure below is for ground setting the
needles prior to flight. The final adjustments
need to be made after noting the performance
in the air.
1. With engine started and warmed up, open
the throttle fully and note the rpm. Listen to
the engine.
a. If the engine occasionally mis-fires but
maintains a fairly constant rpm after 5
seconds, your engine is rich. Reduce the
throttle to idle and turn in (clockwise)
the high-speed needle 2 clicks. Repeat
this until the engine stops mis-firing.
b. If the engine does not mis-fire and the
rpm steadily decreases from the highest
rpm achieved when you opened the
throttle, it is lean. Reduce the throttle
to idle and open (counterclockwise)
the high-speed needle 2 clicks. Repeat
this until the engine maintains the rpm
achieved when the throttle is wide open
Your goal here is to achieve a good
transition between high and low speed,
and that the high-speed rpm will be
steady on the ground.
2. Fly your aircraft for the in-air testing.
a. During flight, if the engine seems to slow
down or sag when climbing, your engine
is running slightly lean. Land the
airplane and open the high-speed
needle valve 2 clicks and take-off again.
b. During flight, if you hear the engine mis-
firing occasionally in level flight, this is
an indication it is running too rich. Land
the airplane and close the high-speed
needle valve 2 clicks and take-off again.
c. Repeat the above process until your
engine performance is steady and
repeatable. This high-speed needle
setting should not change more than
+/– 1–2 clicks in the future when using
the same propeller. If it does, something
is wrong in the fuel delivery system and
should be investigated.
If you are using onboard telemetry and have
a temperature monitor on the head of your
engine, your readings should be between
200°F (93°C) and 300°F (149°C). If you see
consistent temperatures above 340°F (171°C)
you should land your airplane and add
baffling to your cowl in order to increase
cooling to the engine. See the Telemetry
section for information on the proper
positioning of your sensor.
High-Speed Needle Adjustment

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If you have properly set the idle need, the
low-speed setting should be within 1/16th of
a turn from perfect. Remember we are talking
about minute amounts of fuel going through
the carburetor, any adjustments you now
make to the idle needle should be very, very
small.
Take into consideration the length in service
(e.g. break-in time) and the size of propeller
you are using. In the beginning, use a smaller
propeller early in the break-in process. You
will not be able to achieve an idle much below
2000 rpm. The larger the propeller, the lower
your idle rpm will be, and the more broken in
your engine is will allow a lower idle rpm
(14 x 6 should be about 1800–2000 rpm).
Your engine will idle at low-speed needle set-
tings from far to0 rich to far too lean without
any damage, so the quality of the idle is not
a good indicator of the proper low-speed
needle settings. The transition from idle to full
throttle will be used to determine the position
of the low-speed needle.
1. With the engine started and warmed up,
open the throttle fully then reduce to idle
and note the rpm. Listen to the engine.
2. Let the engine idle for ten seconds and
then rapidly advance the throttle to full
open. One of three things will occur:
a. The engine responds instantaneously.
Your low speed needle is set perfectly.
Now use your throttle trim to achieve the
lowest reliable idle.
b. The engine slowly accelerates to full
throttle. This indicates the low speed
needle is set two rich and that fuel is
building up in the crankcase. Shut the
engine off and lean (clockwise turn)
the low speed idle screw by an amount
equal to the thickness of the screwdriver
blade you are using to make the adjust-
ment. Restart the engine and repeat
steps 1 and 2.
c. The engine stutters or stops on it way to
full throttle. This indicates the low speed
needle is set too lean. With the engine
off, richen (counterclockwise turn) the
low speed idle screw by an amount
equal to the thickness of the screwdriver
blade you are using to make the
adjustment. Restart the engine and
repeat steps 1 and 2.
3. Once you have achieved the instantaneous
throttle transition, your low-speed needle is
set perfectly. Now go back and recheck your
high-speed needle valve setting. There is
some interaction between the two needles
so you might need to do this process (HS
and LS needle setting) a couple of times.
Patience here will reward you with an easy
to use engine. Don’t try to do this too
quickly.
4. Once you have achieved the instantaneous
throttle transition your low speed needle
is set perfectly. It is possible that with a
heavier-loaded propeller that you may need
to richen the needle in order to attain a
smooth, instantaneous response again, but
using the above procedure should lead you
to the proper setting everytime.
Low-Speed Needle Adjustment

EN
14
15GX Evolution Engines Specications
Disp Bore Stroke Weight Crank K (ISO) Cylinder Propeller
15cc 27.8mm 24.9mm 31.1 0z 5/16-24 Single 14 x 6 @ 10,400 rpm
Weight
Engine Only 21.4 oz
Muffler 6.1 oz
Ignition 3.5 oz
Total 31.1 oz
E = Height*
F = Length
G = Crankshaft thread size
H = Muffler bolt spacing
B A
C D
F
G
H
Dimensions (mm) A B C D E* F G H
EVOE15GX 43 52 25 59 95 98.1 5/16 x 24 42
* Height is from engine C/L to top of cylinder head.
Troubleshooting Guide
If the Engine Does Not Start
• Check and use a new spark plug if needed.
• Check fuel lines.
• Check for proper mechanical function by
turning the engine over.
• Check that the carburetor is correctly
installed.
• Check that the mufer pressure line is
attached and free from any bends or
blockages.
Mechanical Faults
If the engine cannot be turned over easily
• The most likely cause is the engine is
flooded and by turning the engine over you
are trying to compress the fuel, not air.
1. Remove the spark plug.
2. Cover the cylinder head with a cloth or
paper towel and turn the propeller over
to expel all the excess fuel.
3. Replace the spark plug and try starting
again.
• A possible cause is the piston in the
cylinder is seized: loosen and unscrew the
cylinder head bolts.
1. Carefully remove the cylinder liner.
2. Visually examine the piston and cylinder
to find the possible cause of the engine’s
mechanical problem.
Mechanical repairs must ALWAYS be
completed by an authorized Horizon Hobby
service center.
Maintenance
After each flying session:
1. Fully drain the fuel from the tank.
2. Start the engine and run it until the fuel is
completely run out of the engine.
3. Try starting the engine three more times or
until it will no longer fire. This gets all the
fuel out of the engine.
If you need additional help or have any
questions, please call Horizon’s Support
Team. Horizon has trained technicians
who are qualified to answer your engine
questions.

EN
15
Exploded View
10
12
13
30
14
8
15
9
5
32
4
3
1
17
18
19
31
11
27
41
39
42
34
27
43
33
26
27
37
27
38
35
25
2
27
16
36
22
29
24
23
7
6
44
40
21
20

EN
16
Parts List
# Description Part
1Cylinder Screw (6) EVO46408
2 Spark plug EVOG10350
3Cylinder Head EVOG15103
4Cylinder Head Gasket (2) EVO91112
5Cylinder EVOG15202
6Piston Ring EVO91236
7Ringed Piston EVOG15214
8Piston Pin & Retainer EVO91213
9Connecting Rod EVOG15204
10 Prop Washer & Nut EVO100228
11 Drive Washer EVOG15219
12 Spacer Washer EVO91225
13 Front Bearing EVO91109
14 Crankcase with Index Pin EVOG15101
15 Rear Bearing EVO400110
16 Drive Key EVO91218
17 Crankshaft EVOG15210
18 Back Cover Set EVOG15102
19 Back Cover Screw (4) EVO40134
20 Muffler Assembly EVOG15601
21 Muffler Long Screw EVO91616
22 Complete Ignition System EVOG10300
23 In Line Fuel Filter EVOA105
# Description Part
24 In Tank Fuel Filter/Clunk EVOA106
25 Carb Assembly EVOG15801
26 Ignition Sensor Set EVOG10310A
27 Carb Gasket Set EVOG15108A
28 Carb Mount Gasket Set EVOG61816A
29 Medium Gas-FKM Fuel
Tubing
EVOA102
30 Muffler Mounting
Screw Set
EVO9191A
31 Back Cover Gasket EVO91111
32 Mufer Gasket (2) EVO91609
33 High-Speed Needle EVOG15829
34 Carb Regulator Screws (4) EVOG12123
35 Carburetor Retainer EVO61119
36 High-Speed Needle
Valve Assembly
EVOG15812
37 Fuel Nipple-12114:A EVO100114
38 Regulator Case Parts EVOG1087A
39 Carb Barrel Spring EVOG10814
40 Throttle Arm EVO46866
41 Throttle Barrel EVOG15813
42 Low-Speed Adjustment EVOG15844
43 Main Carb Body EVOG15827
44 Carb Barrel Retaining Bolt EVOG46825
2-YEAR LIMITED WARRANTY
What this Warranty Covers - Horizon Hobby, Inc.,
(Horizon) warrants to the original purchaser that
the product purchased (the “Product”) will be free
from defects in materials and workmanship for a
period of 2 years from the date of purchase.
What is Not Covered - This warranty is not trans-
ferable and does not cover (i) cosmetic dam-
age, (ii) damage due to acts of God, accident,
misuse, abuse, negligence, commercial use,
or due to improper use, installation, operation
or maintenance, (iii) modication of or to any
part of the Product, (iv) attempted service by
anyone other than a Horizon Hobby authorized
service center, (v) Product not purchased from
an authorized Horizon dealer, or (vi) Product not
compliant with applicable technical regulations.
OTHER THAN THE EXPRESS WARRANTY ABOVE,
HORIZON MAKES NO OTHER WARRANTY OR REP-
RESENTATION, AND HEREBY DISCLAIMS ANY AND
ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT
LIMITATION, THE IMPLIED WARRANTIES OF NON-
INFRINGEMENT, MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. THE PURCHASER
ACKNOWLEDGES THAT THEY ALONE HAVE DETER-
MINED THAT THE PRODUCT WILL SUITABLY MEET
THE REQUIREMENTS OF THE PURCHASER’S IN-
TENDED USE.
Purchaser’s Remedy - Horizon’s sole obligation
and purchaser’s sole and exclusive remedy shall
be that Horizon will, at its option, either (i) service,
or (ii) replace, any Product determined by Horizon
to be defective. Horizon reserves the right to in-
spect any and all Product(s) involved in a warranty
claim. Service or replacement decisions are at
the sole discretion of Horizon. Proof of purchase
is required for all warranty claims. SERVICE OR
REPLACEMENT AS PROVIDED UNDER THIS WAR-

EN
17
RANTY IS THE PURCHASER’S SOLE AND EXCLUSIVE
REMEDY.
Limitation of Liability - HORIZON SHALL NOT BE
LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR
PRODUCTION OR COMMERCIAL LOSS IN ANY WAY,
REGARDLESS OF WHETHER SUCH CLAIM IS BASED
IN CONTRACT, WARRANTY, TORT, NEGLIGENCE,
STRICT LIABILITY OR ANY OTHER THEORY OF LI-
ABILITY, EVEN IF HORIZON HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES. 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 re-
sulting 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 the
Product, purchaser is advised to return the Prod-
uct immediately in new and unused condition to
the place of purchase.
Law - These terms are governed by Illinois law
(without regard to conict of law principals). This
warranty gives you specific legal rights, and you
may also have other rights which vary from state
to state. Horizon reserves the right to change or
modify this warranty at any time without notice.
WARRANTY SERVICES
Questions, Assistance, and Services - Your local
hobby store and/or place of purchase cannot pro-
vide warranty support or service. Once assembly,
setup or use of the Product has been started, you
must contact your local distributor or Horizon di-
rectly. This will enable Horizon to better answer your
questionsand service you in the eventthat you may
need any assistance. For questions or assistance,
please visit our website at www.horizonhobby.
com, submit a Product Support Inquiry, or call the
toll free telephone number referenced in the War-
ranty and Service Contact Information section to
speak with a Product Support representative.
Inspection or Services - If this Product needs to
be inspected or serviced and is compliant in the
country you live and use the Product in, please
use the Horizon Online Service Request submis-
sion process found on our website or call Horizon
to obtain a Return Merchandise Authorization
(RMA) number. Pack the Product securely using
a shipping carton. Please note that original boxes
may be included, but are not designed to with-
stand the rigors of shipping without additional
protection. Ship via a carrier that provides track-
ing and insurance for lost or damaged parcels, as
Horizon is not responsible for merchandise until
it arrives and is accepted at our facility. An Online
Service Request is available at http://www.hori-
zonhobby.com/content/_service-center_render-
service-center. If you do not have internet access,
please contact Horizon Product Support to obtain
a RMA number along with instructions for submit-
ting your product for service. When calling Hori-
zon, you will be asked to provide your complete
name, street address, email address and phone
number where you can be reached during busi-
ness hours. When sending product into Horizon,
please include your RMA number, a list of the
included items, and a brief summary of the prob-
lem. A copy of your original sales receipt must be
included for warranty consideration. Be sure your
name, address, and RMA number are clearly writ-
ten on the outside of the shipping carton.
NOTICE: Do not ship LiPo batteries to Horizon. If
you have any issue with a LiPo battery, please
contact the appropriate Horizon Product Support
office.
Warranty Requirements - For Warranty consider-
ation, you must include your original sales receipt
verifying the proof-of-purchase date. Provided
warranty conditions have been met, your Product
will be serviced or replaced free of charge. Service
or replacement decisions are at the sole discretion
of Horizon.
Non-Warranty Service - Should your service not
be covered by warranty, service 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 sub-
mitting the item for service you are agreeing to
payment of the service without notification. Ser-
vice estimates are available upon request. You
must include this request with your item submit-
ted for service. Non-warranty service estimates
will be billed a minimum of ½ hour of labor. In ad-
dition you will be billed for return freight. Horizon
accepts money orders and cashier’s checks, as
well as Visa, MasterCard, American Express, and
Discover cards. By submitting any item to Horizon
for service, you are agreeing to Horizon’s Terms
and Conditions found on our website http://www.
horizonhobby.com/content/_service-center_ren-
der-service-center.
ATTENTION: Horizon service is limited to Product
compliant in the country of use and ownership.
If received, a non-compliant Product will not be
serviced. Further, the sender will be responsible
for arranging return shipment of the un-serviced
Product, through a carrier of the sender’s choice
and at the sender’s expense. Horizon will hold
non-compliant Product for a period of 60 days
from notification, after which it will be discarded.

EN
18
COMPLIANCE INFORMATION FOR THE
EUROPEAN UNION
Declaration of Conformity (in
accordance with ISO/IEC 17050-1)
No. HH2013032704
Product(s): EVO 15cc (.91) Gas Engine
Item Number(s): EVOE15GX
The object of declaration described above is in
conformity with the requirements of the
specifications listed below, following the
provisions of the European EMC Directive
2004/108/EC:
EN55022:2010 + AC:2011
EN55024:2010
Signed for and on behalf of:
Horizon Hobby, Inc.
Champaign, IL USA
March 27, 2013
Instructions for disposal of WEEE by
users in the European Union
This product must not be disposed of with
other waste. Instead, it is the user’s responsibility
to dispose of their waste equipment by handing
it over to a designated collections point for the
recycling of waste electrical and electronic equip-
ment. The separate collection and recycling of
your waste equipment at the time of disposal will
help to conserve natural resources and ensure
that it is recycled in a manner that protects hu-
man health and the environment. For more infor-
mation about where you can drop off your waste
equipment for recycling, please contact your local
city office, your household waste disposal service
or where you purchased the product.
Steven A. Hall
Executive Vice President and Chief Operating Ofcer
International Operations and Risk Management
Horizon Hobby, Inc.
WARRANTY AND SERVICE CONTACT INFORMATION
Country of
Purchase Horizon Hobby Contact Information Address
United States of
America
Horizon Service
Center
(Repairs and
Repair Requests)
servicecenter.horizonhobby.
com/RequestForm/
4105 Fieldstone Rd
Champaign, Illinois,
61822 USA
Horizon Product
Support
(Product Technical
Assistance)
www.quickbase.com/db/
bghj7ey8c?a=GenNewRecord
888-959-2305
Sales [e-mail]
888-959-2305
United Kingdom
Service/Parts/
Sales:
Horizon Hobby
Limited
[e-mail] Units 1–4 , Ployters Rd,
Staple Tye
Harlow, Essex, CM18 7NS,
United Kingdom
[phone]
Germany
Horizon Tech-
nischer Service [e-mail] Christian-Junge-Straße 1
25337 Elmshorn, Germany
Sales: Horizon
Hobby GmbH [phone]
France
Service/Parts/
Sales:
Horizon Hobby
SAS
[e-mail]
11 Rue Georges Charpak
77127 Lieusaint, France
[phone]
China
Service/Parts/
Sales:
Horizon Hobby –
China
[e-mail] Room 506, No. 97 Chang-
shou Rd.
Shanghai, China 200060
[phone]

DE
19
HINWEIS
Alle Anweisungen, Garantien und anderen zugehörigen Dokumente können im eigenen Ermes-
sen von Horizon Hobby, Inc. jederzeit geändert werden. Die aktuelle Produktliteratur finden Sie
auf horizonhobby.com unter der Registerkarte „Support“ für das betreffende Produkt.
Die folgenden Begriffe werden in der gesamten Produktliteratur verwendet, um auf unter-
schiedlich hohe Gefahrenrisiken beim Betrieb dieses Produkts hinzuweisen:
HINWEIS: Wenn diese Verfahren nicht korrekt befolgt werden, können sich möglicherweise
Sachschäden UND geringe oder keine Gefahr von Verletzungen ergeben.
ACHTUNG: Wenn diese Verfahren nicht korrekt befolgt werden, ergeben sich wahrscheinlich
Sachschäden UND die Gefahr von schweren Verletzungen.
WARNUNG: Verfahren können bei nicht ordnungsgemäßer Durchführung möglicherweise
Schäden an Eigentum, Kollateralschäden UND schwere Verletzungen bis zum Tot ODER
höchstwahrscheinlich oberächliche Verletzungen verursachen.
Spezielle Bedeutungen
WARNUNG: Lesen Sie die GESAMTE Bedienungsanleitung, um sich vor dem Betrieb
mit den Produktfunktionen vertraut zu machen. Wird das Produkt nicht korrekt
betrieben, kann dies zu Schäden am Produkt oder persönlichem Eigentum führen
oder schwere Verletzungen verursachen.
Dies ist ein hochentwickeltes Hobby-Produkt. Es muss mit Vorsicht und gesundem Men-
schenverstand betrieben werden und benötigt gewisse mechanische Grundfähigkeiten. Wird
dieses Produkt nicht auf eine sichere und verantwortungsvolle Weise betrieben, kann dies
zu Verletzungen oder Schäden am Produkt oder anderen Sachwerten führen. Dieses Produkt
eignet sich nicht für die Verwendung durch Kinder ohne direkte Überwachung eines Erwach-
senen. Versuchen Sie nicht ohne Genehmigung durch Horizon Hobby, Inc., das Produkt
zu zerlegen, es mit inkompatiblen Komponenten zu verwenden oder auf jegliche Weise zu
erweitern. Diese Bedienungsanleitung enthält Anweisungen für Sicherheit, Betrieb und
Wartung. Es ist unbedingt notwendig, vor Zusammenbau, Einrichtung oder Verwendung alle
Anweisungen und Warnhinweise im Handbuch zu lesen und zu befolgen, damit es bestim-
mungsgemäß betrieben werden kann und Schäden oder schwere Verletzungen vermieden
werden.
ACHTUNG: Dieses Produkt kann bei dem Betrieb extrem heiß werden was zu
Verbrennungen führen kann.
Nicht geeignet für Kinder unter 14 Jahren. Dies ist kein Spielzeug.
Sicherheitswarnungen
Modellmotoren haben eine erhebliche Leistung, die bei unsachgemäßer Verwendung eine Ge-
fährdung darstellen kann. Nutzen Sie bei dem Betrieb immer den gesunden Menschenverstand
und beachten alle Sicherheitshinweise bei dem Umgang mit dem Motor, oder allen Tätigkeiten
in diesem Zusammenhang. Das nicht befolgen der Sicherheitsbestimmungen kann zu ernst-
haften Personen- und Sachbeschädigungen führen.
• Stellen Sie immer sicher dass Zuschauer, insbesondere Kinder, mindestens 9,90 Meter
entfernt sind wenn Sie den Motor laufen lassen.
• Stellen Sie vor JEDEM Flug sicher, dass der Propeller fest mit der Kurbelwelle verbunden ist
und alle Halter/Befestigungen sicher angezogen/befestigt sind. Verwenden Sie zum sichern
von Schrauben und Muttern blauen Schraubensicherungslack.
• Halten Sie Kleinteile immer aus der Reichweite von Kindern, da diese verschluckt
werden können.
• Sichern Sie immer das Flugzeug bevor Sie den Motor starten.
• Halten Sie immer das Gesicht und den Körper weg vom Propellerkreis wenn Sie den Motor
starten oder wenn er läuft.

DE
20
• Stellen Sie sich immer hinter den Propeller wenn Sie Einstellungen am Vergaser vornehmen.
• Tragen Sie immer eine Schutzbrille beim Starten oder Laufen lassen des Motors.
• Bewahren Sie ihren Kraftstoff immer an einem sicheren Ort weit weg von möglicher
Funkenbildung, Hitze oder zündfähigen Stoffen auf.
• Stellen Sie immer sicher, dass das Luftfahrzeug korrekt gesichert ist und sich bei Motorstart
nicht bewegen/anrollen kann.
• Führen Sie nach den Einstellungen vor dem Erstug den Bindevorgang erneut aus.
• Stellen Sie immer sicher dass die Failsafeeinstellung des Gaskanal auf Motor aus/
Leerlauf steht.
• Führen Sie immer vor dem Flug einen Reichweitentest durch.
• Unterbrechen Sie die Kraftstoffversorgung (durch trennen oder abdrücken der
Kraftstofeitung) oder schließen Sie mit Gasgestänge die Vergaserdrosselklappe
um den Motor zu stoppen.
• Gebrauchen Sie niemals Ihre Hände, Finger oder andere Körperteile um den Propeller
zu stoppen.
• Werfen Sie niemals etwas in den Propeller um ihn zu stoppen.
• Lassen Sie niemals den Motor über losen Untergrund wie Sand oder Kies laufen, damit
nicht die Gefahr besteht dass der Motor kleine Teile unkontrolliert hochschleudert.
• Tragen Sie niemals bei dem Betrieb des Modells lose Kleidung oder ein loses Nackenband/
Umhängegurt, da sich diese Teile im Propeller verfangen können.
• Führen Sie niemals bei Betrieb oder Umgang mit dem Motor lose Gegenstände wie
Schraubendreher, Stifte, etc.. in Ihren Taschen. Diese könnten in den Propeller fallen.
• Lassen Sie niemals Kraftstoff in Berührung mit Mund oder Augen kommen da dieser giftig ist.
• Lagern Sie Kraftsoff in eindeutig bezeichneten Behältnissen ausserhalb der Reichweite
von Kindern.
Sicherheitsrichtlinien
• Montieren Sie den Motor korrekt auf einer geeigneten Werkbank oder einem qualitativ
hochwertigen Motorträger.
• Verwenden Sie immer Propeller mit der richtigen Größe und Steigung. Sehen Sie dazu
in die Propellerliste in dieser Anleitung.
• Überprüfen Sie immer vor der Montage des Propellers dass dieser einwandfrei gewuchtet ist.
Das nichtbeachten könnte zu Motorschäden oder zu Schäden am Flugzeug führen.
• Verwenden Sie immer falls möglich einen Elektrostarter.
• Verwenden Sie keine Propeller die Knicke, Risse, Brüche oder sonstige Beschädigungen
aufweisen.
• Lassen Sie den Motor nur in gut belüfteten Bereichen laufen. Modellmotoren produzieren
giftige Kohlenmonoxid Abgase.
• Bewahren Sie Ihre Kraftstoff sicher in einem versiegelten, Wasser-Behältnis.
• Lagern Sie Kraftstoff nur in kühlen trockenen Orten. Lassen Sie Kraftstoffbehälter nicht in di-
rekten Kontakt mit Beton kommen, da der Kraftstoff dadurch Feuchtigkeit aufnehmen könnte.
• Entsorgen Sie immer verantwortungsvoll Kraftstoff der durch Kondensation Feuchtigkeit (Was-
ser) aufgenommen hat.
• Schütten Sie niemals ungebrauchten Kraftstoff aus dem Tank in den Kanister.
• Modizieren, verändern und reparieren Sie niemals Propeller.
• Hantieren Sie nicht mit Modellmotoren, Schalldämpfern, Auspuffen oder Resorohren
bis diese vollständig abgekühlt sind. Diese können bei Betrieb extrem heiß werden.
Einleitung
Herzlichen Glückwunsch zum Kauf ihres neues Motors aus der revolutionären Evolution Small
Block Benziner Serie.Sämtliche Evolution-Benzinmotoren sind dafür ausgelegt, Ihnen ab dem
ersten Tag hervorragende Leistung zum Bruchteil Ihrer vorherigen Betriebskosten zu geben.
Wir haben jeden einzelnen Motor mit äußerster Sorgfalt konstruiert und geprüft, um einen
problemlosen Betrieb ohne Kompromisse in der Leistung oder Langlebigkeit einzugehen.
Dieses Handbuch führt Sie, wenn Sie es lesen und befolgen, durch einfache Schritte zu einer
erfolgreichen Anwendung. Herzlich willkommen bei der Evolution-Produktfamilie.