Manual of EME55-II Engine
Contents
1. gt Turning the needles clockwise leans the fuel mixture Turning the needles counter clockwise richens the fuel mixture Settings will vary with altitude temperature humidity fuel carburetor variances etc Manual of EME55 II Engine A general starting point is 1 1 2 s open on the Low needle 1 1 2 s open on the High needle Adjusting either needle can have a slight effect on the other Example leaning the low needle can slightly lean the high range gt Adjust the High needle to peak rpm A tachometer is a great help but remember that the RPM may drop a little bit after every start due to heat buildup Don t lean the mixture any more than necessary If the rom steadily drops at full throttle or fades on long vertical maneuvers the engine is too lean and is overheating gt Adjust the Low needle until you achieve a smooth idle and a reliable transition to high throttle Generally if the engine stutters or coughs in the mid range or when the throttle is advanced the Low end is too rich and possibly even the High needle If the engine dies quickly the Low end is probably lean gt Set the High needle slightly rich during break in Operating the engine overly rich not only reduces power it creates other problems such as poor transition pre mature carbon buildup fouled plugs excessive exhaust residue sticking rings and overall rough running2. batteries In other words don t charge the ignition module while charging the battery Use 4 8 or 6 0 volt batteries only We see no significant difference in engine performance between the two The ignition will tolerate the peak charge voltage on these packs Higher voltage batteries will damage the ignition system and will void the warranty We recommend a 1500 mAh or larger pack With this size pack the ignition pack should last longer than your receiver pack will If a meter shows 5 0 volts or less don t fly Re charge Use a 5 2 to 6 0 V regulator on packs rated above 6 0 volts Unless you are having problems starting the motor don t bother testing the ignition with the plug removed from the cylinder When removing the spark plug caps PULL STRAIGHT out on the caps not the shielded ignition wires If the cap seems loose and is not making a solid metal to metal contact with the spark plug base contact service for a replacement To prevent radio interference the spark plug Manual of EME55 II Engine caps must have the split retainer ring around their base DON T FLY WITHOUT THEM Protect the shielded plug wires from rubbing against fiberglass or sharp edged of wood or metal Rubber grommets and plastic spiral wrap insulation from automotive or electronic supply stores work well to protect your braided shielding Holes in the braided shielding can emit R F noise i e RADIO INTERFERENCE Damaged
3. not use any silicon sealers on the fuel system Gas can break it down and carry it into the carburetor Set the High needle slightly rich during break in Recommended Props Always tighten prop bolts and inspect your prop and spinner before each flight While special break in props are not required avoid large heavy load props during the break in period Some recommend props are For break in Menz 22x8 Mejzlik 22x8 22x10 23x8 23x10 Bolly wood or carbon 22x10 20x12 3 blade 21x11 5N 3 blade After break in Same as above Smaller diameter props less tip speed and more pitch less rom will reduce noise 3 blade Manual of EME55 II Engine Yy props normally have less diameter and more load from the pitch and extra blade This normally makes them the quietest props Always use a drill guide to drill your props Always check the balance of your prop For safety we recommend painting the tips of you props front and back with bright color especially black props Never use a damaged or repaired prop or a prop that has struck the ground or any other object Damage that can be hard to see could turn into disaster when turning at thousands of RPM Start Up Engine gt VV VV NV NV V WV Y V V V WV Beware of running the engine without the wings installed on the fuselage Without the mass of the wings vibration will be very pronounced Check that prop bolts are tight and spinner is secure Make sure th
4. revolutions after running the motor to discharge the ignition system The ignition system develops extremely high voltage Do not touch it during operation Mounting the Engine gt The EME55 II features a rear induction carburetor that is intended to protrude or breathe through the fire wall This carburetor location provides a stable air environment for consistent high performance while carburetor noise is greatly reduced The width of the motor is also reduced for tighter cowl installations The EME55 II can be mounted with or without the included stand off soacer mounts The spacers are mounted to the motor mount flange tabs with steel M5 metric screws Supplied We recommend blue Loctite on all engine mounting screws Check the mounting bolts regularly to insure they are tight Be very careful using shims or spacers behind the supplied stand off mounts The rear face of each stand off must be in the same plane If they are not in the same plane the mounts and crankcase will be under stress This can cause damage to the engine such as cracked broken mounting tabs Make sure the carburetor has adequate clearance near the inlet to allow an unobstructed airflow into the carburetor If the carburetor is located in front of the firewall be sure there is at least 1 25mm of clearance from the carburetor inlet If there is less than 1 clearance make a hole larger than the carburetor inlet diameter in the firewall Manual
5. Manual of EME55 II Engine User Manual EME gasoline engine is professional design for model airplane With the advantages of weight power and stability EME provides you the opportunity on power selection on TOC airplane Please read the manual carefully before the operation Technical Specifications Performance lt 5 5HP 7500rpm lt Idle Speed 1350 rom min lt 14 2kg Pulling Force 100 meters Altitude lt 12 5kg Pulling Force 1800 meters Altitude lt Spark Plug NGK CM6 operating voltage 4 8 6V Allinstallation accessories included ensure the installation convenient Parameters Manual of EME55 II Engine lt Exhaust Amount 55 6CC lt Diameter stroke 45mm 35mm lt Ratio of compression 7 6 1 lt Ratio of lubricating capacity 30 1 lt Weight 1380g main engine 75g exhaust pipe lt Ignition Apparatus 120g lt Recommended Aircraft Propeller 22x8 22x10 23x8 23x10 195mm New Features compared with the EME55 engine lt The EME55 II engine mount is shorter than the EME55 engine s See the following photos High strength of the soft foam packing avoid engine damage in transportation ee i t Installation pillar size t shorter ensure the installation more l stable f x z Ww t a a EME55 EME55 1 lt Install mount and throttle regulator is the same with DA 60engine and DLE55 lt This engine u
6. e starting area is free of dirt sand gravel or other loose debris Always wear a heavy leather glove when starting the engine Turn on the radio system and check the throttle operation and position Have someone with eye protection firmly hold the plane Close the choke completely Open the throttle to approximately 1 8 position Turn on the ignition ALWAYS BE PREPARED FOR THE ENGINE TO START ON ANY FLIP OF THE PROP whether the ignition switch is on or off Flipping the prop with the ignition off may flood the engine The EME55 II can flood quickly Give the prop a quick firm flip counter clockwise Follow through quickly as you flip the prop so your hand swings out of the props path Repeat until the engine fires or pops Open the choke Set throttle to idle position Carburetor butterfly plate slightly open Flip the prop again until the engine runs Let the engine warm up for 15 to 20 seconds before advancing the throttle For idle on a single cylinder engine the rom range should be 1700 to 2100 rom Usually the engine only needs to be choked on the first start of the day If the engine becomes flooded removing or pinching the fuel line while flipping the prop quickly will help to dry things out The spark plug can also be removed to speed the process Needle Adjustments The needle farthest from the engine is the High End needle The needle closest to the engine is the Low End needle gt
7. ing or operating the motor Inspect motor mount bolts and firewall integrity before operating the motor Anyone in the immediate area of the motor should use eye protection during operation of the motor gt When operating the motor never stand or allow anyone else to stand in front of or to the side of the propeller Always stand behind the propeller Keep spectators at least 30 feet away when operating the motor Turn off the motor before making any adjustments Manual of EME55 II Engine Y Vv V WV gt Always use the proper size propeller Never use a damaged modified or repaired propeller Always use the correct length propeller bolts Do not use spacers behind the propeller Spinner cones must not touch the propeller Thinner props may require using shorter prop bolts especially if not using a spinner back plate Make sure your prop bolts do not bottom out in the propeller hub Check that the propeller bolts are tight before every flight Always install an ignition kill switch to stop the motor Adjust the carburetor linkage so that the motor will stop when the carburetor is completely closed Gasoline is extremely flammable Be careful of any sparks from electrical contacts such as fuel pumps battery chargers etc Do not allow smoking in the area of your fuel supply or motor Store fuel in approved containers and in well ventilated areas Allow the motor to cool before touching or fueling Always turn the prop a few
8. of EME55 II Engine gt The spring tension on the EME55 II carburetor is fairly light and most users will leave it as is If you wish the throttle returns spring can be released not removed off the end that hooks on the throttle spring return arm Opposite side of the carburetor from the throttle arm gt NOTE Removing the throttle spring will allow the shaft to move and wear due to vibration This wear damage will allow air and fuel to enter the engine when in the closed position gt The throttle is attached firmly to the carburetor linkage with red Loctite Removing it may Cause damage The choke lever can be actuated by finger or by a small servo behind the firewall Soft mounts can be used but movement of the engine can cause problems with exhaust systems and carburetor linkages gt Make sure firewall and or motor box are secure Ignition System J When making electrical connections to the ignition system use the same gauge wire or larger as used on the red and black power leads on the ignition module all the way to the battery pack Keep wire lengths to a minimum Please use the heavy duty connector plugs supplied with the ignition Use a high quality switch such as a Futaba or JR heavy duty switch Small size R C receiver switches are not recommended Mount the ignition module on a foam pad with plastic zip ties DO NOT HARD MOUNT OR USE DOUBLE SIDED TAPE Isolate the charge circuit from the ignition while charging the
9. pgrades from EME55 better performance The ignition parameter is more scientific ensure to make the engine stronger power and more fuel efficient Manual of EME55 II Engine install mount and throttle regulator is the same with DA 60 and DLE55 The ignition parameter is set more scientifically ensure stronger power more fuel efficient Safety Instructions WARNING This motor can cause severe harm to you and or others if misused or if these safety precautions and instructions are not observed EME Engines is not responsible for any loss injury or damage resulting from the miss use of its products You alone are responsible for the safe operation of your motor gt Do not operate the motor if you do not want to be completely responsible for any damage or injury incurred or caused during its operation gt Read all instructions before operating your motor If you have any questions about any aspect of operating this motor do not attempt to start or operate it Never operate the motor or fly alone Keep away from the prop while operating the motor Do not wear loose clothing near the motor or prop Do not run the motor near loose material such as dirt gravel power cords ropes sand etc Loose material can be drawn into the turning prop causing injury or damage Always operate the motor in an open area Do not operate indoors This motor can develop tremendous thrust Make sure the aircraft is properly secured when start
10. plug wires are not replaceable and may require the ignition to be replaced Protect them gt Keep ignition components and wiring separated as much as possible from your receiver receiver battery servos wiring and switches Don t use metal to metal linkages to operate the throttle Always perform a radio range check before flying Range with one section of the antenna extended should be at least 80 to 100 ft with the plane on the ground and the motor running If there are glitches DON T FLY Check for holes in the braided shielding or loose connections spark plug caps connectors and switches If that doesn t solve the problem re locate your ignition and receiver components farther apart If the problem persists return the ignition to service for inspection Timing is set at the factory and should not need adjustment Contact service if you have any questions regarding timing Fuel and Oil Mix gt gt Low to Mid octane pump gas is recommended High octane may be beneficial only when using tuned exhaust systems We recommend filtering your fuel between your fuel container and your plane s fuel tank A high flow filter or clunk filter between the tank and motor is also a good idea Make sure the plane s tank is well vented and the fuel clunk mover freely Use of any other fuel or additives such as methanol nitro formulas aviation gas white gas etc can harm the motor and will void the warranty Do
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