Evolution Engines EVOE116GX2 - Manual (Page 5)

Starting the engine
The new Evolution Engine carburetor comes adjusted to a
basic setting. This setting should be maintained during the
initial break-in runs.
Before you first start the engine, make sure that the spark
plug is screwed in and tightened and that the plug socket
is fitted in place and fastened down properly. Fix the ignition
sensor in the proper position above the magnet with the
screws enclosed. Follow the directions in the Ignition System
addendum on page 8 to mount the ignition module in your model.
Important: Never turn the engine over with the ignition
turned on unless the spark plug is inserted in the plug socket.
This could lead to ignition damage.
carburetor Adjustments
Adjust needle (L) for low rpm range 3/4 turn open
Adjust needle (H) for high rpm 1 turn open
NOTE: The Low Speed adjustment is to the left of the high speed needle.
Basic setting: throttle closed
4
Fuel for the evolution gas engine
The Evolution ® Gas engine has been designed to run on a mixture of high-quality unleaded gasoline and synthetic oil intended for racing
2-stroke gasoline engines. For the run-in period of the new engine, mix the fuel in a ratio of 30 parts gasoline to 1 part lubricant. After
run-in, use a ratio of 40 parts gasoline to 1 part lubricant.
Ignition System Warning
It has come to our attention that some users are not aware that
when using the GT2/GX2 electronic ignition, it fires the spark
plugs for 1 second to check the condition of the battery prior to
starting the engine. If the engine is in the compression position
(i.e., the piston is above the exhaust port in either the up OR
down part of the stroke), any compressed fumes may ignite,
causing the propeller to turn and possibly the engine to start
unintentionally.
To prevent this with the Evolution Gasoline GT2/GX2 Ignition
System, the Ignition Power Switch must be turned off; check to
see that the piston is in the bottom dead center (BDC) position. Bottom Dead Center can be found by rotating the propeller
through the compression stroke. As you rotate the propeller you
will feel it tighten, then suddenly loosen. Once the turn becomes
very easy you have completed the compression stroke and are at
BDC. Once you are sure the piston is in this position, you may
turn on the ignition power switch and operate the system safely.
As always, it is important to use extreme care when near
or with engines, fuel and propellers. Please use caution when
working with these components. If you have any questions or
concerns, please contact our Product Support team at 1-877-
504-0233 or [email protected].
1) When you are ready to start your engine, make sure that the ignition is switched off, the choke valve is closed and the throttle valve
is partly open. Confirm that fuel is filling the fuel line to the carburetor, then switch the ignition to the on position. Flip the propeller
smartly until the engine fires. With the choke in the closed position, the engine will fire then quit.
2) Open the choke valve and set the throttle at a slightly high idle position. Be sure to have a helper hold the model securely. Give
the propeller a few quick flips. When the engine starts, allow it to idle for 30 to 45 seconds in order for it to warm up to operating
temperature. At this point, you can proceed to test the carburetor settings before flying your model. See the following section regarding
carburetor adjustment.
Adjusting Needle L
Adjusting Needle H
Choke
Pressure Inlet
Throttle Arm
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