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Evolution Engines 152GX ® US ER GUI DE
Table of Contents Introduction.................................................................................................................................................... 3 Contents Included.......................................................................................................................................... 5 Mounting the Engine......................................................................................................................................
Warranty Period Questions, Assistance, and Repairs 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. 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.
Contents Included Engine Spark Plug 2 pcs (EVO30013309) Electronic Ignition (EVO3314BB) Exhaust Gasket (EVO30070407) Plug wrench Spark plug cable spiral wrap Break in oil Instruction sheet Decal sheet Optional Items Muffler (EVO30113410) Gas Start Kit (EVO1002) Evolution 2-cycle Synthetic Oil (EVOX1001Q) Silencer system (EVO30114210E) Evolution stand off all 116/152 (EVO3312) Ignition battery 3-cell 2100mAh Li-Po (THP21003SPL) Micro Digital Tachometer (HAN156) Mounting the Engine Most model airplane design
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 152cc engine.
Ignition System Warning The GX electronic ignition 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. Bottom Dead Center can be found by rotating the propeller through the compression stroke.
Enabling or Disabling Battery Test This ignition makes it possible to enable or disable the battery test. The battery test is very useful when Li-Po or Li-Ion batteries are used. During the test, a series of flashes are generated and voltage is measured. When the battery passes the test, that means it will run for a minimum of 10 minutes in flight.
Starting the Engine Starting the engine by using your hand or fingers can lead to a serious injury. We recommend that you use a rubber stick to start 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.
Starting the Engine Continued Having started the engine, leave it running for about 5 minutes at a higher idle speed. Then run it for about 20 minutes, while changing revolutions from idle to 1/2–3/4 of the range and shortly holding each position—gradually prolonging the holding periods. After 10 minutes of operation, open the throttle to maximum for a period of about one minute. At this point, stop the engine and let it cool down. Then restart it and check the adjustment.
Troubleshooting Guide If the engine does not start: - Check and use a new spark plug if needed. (Check the spark: put the plug into the cable end and by turning the engine you´ll see the necessary spark. Note: The plug must touch a metal part of the engine.) - Check fuel lines. - C heck for proper mechanical function by turning the engine over. - Check that the carburetor is correctly installed.
152GX Evolution Engine Dimensions A B C D E 170mm 140mm 75mm 90mm 90mm F G H I J K 6.6mm M10x1 55mm 234mm 25mm 288mm 152GX Evolution Engine Specifications Bore Stroke Displacement Weight without ignition* 48mm 42mm 152cc / 9.3 cu in 3530 g / 7.8lb Weight of ignition unit RPM range 210 g / 7.
Installation of the Auto-Choke Ignition Unit While installing the ignition unit in your model, be careful to have all parts that are connected to the unit and the engine situated as far as practical from the radio receiver and radio antenna. The throttle servo should be mounted a distance of 8–12 inches from the engine. The spark plug cable must not touch any part of the model structure as vibration may damage the cable.
Ignition Unit Wiring The Evolution 152GX ignition system has an incorporated automatic choke feature. The automatic choke feature will require the installation of a choke servo connected to the choke lever via pushrod. The choke lever is not drilled to accommodate hardware from the factory but it is simple to drill and add a ball link to the lever. Programming of the automatic choke feature is required through a simple process. Look to the programming chart for the wiring and programming process.
2GX Parts Diagram 15
152GX Parts List Part Number Description Part Number Description EVO30110101 Crankcase EVO3010i1101 Drive Washer EVO30101102 Drive Washer Key EVO30100102 Crankcase Screws Set EVO30100104 Spacer Sleeve EVO30100202 Front Bearing EVO30070203 Rear Bearing EVO30100204 Packing EVO30100205 Rear Needle Bearing EVO30940304 EVO30940305 EVO30110401 EVO30010402 EVO30010403 EVO30070404 EVO30010405 EVO30010406 Pressure Nozzle Pressure Nozzle Gasket Cylinder* Cylinder Screws Set* Cylinder Nut* Cylinder Gasket* Exhaus
