EME 35 User manual

Eagle Master Engine EME 35 User Manual ‐1‐ 
EME 35 Gasoline Engine
User Manual

Eagle Master Engine EME 35 User Manual ‐2‐ 
SAFETY INSTRUCTIONS
◎ Thank you for purchasing EME 35 gasoline Engine. We at EME
always strive to product reliable engines that bring you pleasure of
flight. It is vitally important to read SAFETY INSTRUCTIONS very
carefully before operating EME 35 gasoline engine.
◎ Gasoline is POISONOUS and HIGHLY FLAMMABLE. Do not
allow it contact with the eyes or mouth. Always store it in a cool and
dark place, out of the reach of children. It is possible that the fuel can
damage your health. Always store and transport it in an antistatic
container.
◎ DO NOT start the engine in an area containing loose gravel or sand.
NEVER start the engine indoor.
◎ For their safety, keep all onlookers (especially young children) well
back (at least 5 meters behind the engine). NEVER stand at the front
of, or to the side of the engine when it is running.
◎ Check and tighten your propeller and spinner before one day’s flights.
DO NOT use a Nylon propeller. NEVER try to repair and use a
broken propeller.

Eagle Master Engine EME 35 User Manual ‐3‐ 
Specifications
Item Technique Data
Displacement 35 cc
Weight 960 g/Engine, 45 g/Muffler,
140 g/Ignition Module
Compression
Ratio 7.6
Power 3.6 HP @ 7100 RPM
Idle RPM 1550 RPM
Practical RPM 1550 ~ 7500 RPM
Thrust 1 9.0 kgf (50~200 m Altitude)
Thrust 2 8.1 kgf (1800~2000 m Altitude)
Spark Plug EME / NGK CM6
Ignition Voltage 4.8 V to 6 V
Fuel 91~93 Octane，1:30~1:35 Mix
Ratio
Package Contents
Item Quantity
Engine 1 pcs
Muffler 1 pcs
Ignition Module 1 pcs
Spark Plug 1 pcs
Stand-off Spacer 4 pcs
Spacer Screw M5*15 (front), 4 pcs
M5*22 (rear), 4 pcs
Spacer Washer M5*4 for rear mounting
spacers
Muffler Screw 2 pcs
Muffler Gasket 1 pcs
Manual 1 pcs
Logo Tag 1 pcs

Eagle Master Engine EME 35 User Manual ‐4‐ 
Mounting the Engine
◎ The engine should be mounted on a firewall that will in turn mount to
the fuselage. The firewall should have enough strength to prevent
engine vibration. The firewall should be made from at least 5 mm
aircraft plywood.
◎ A tension free mounting is obligatory. The mounting surface should be
even. Mount the engine with high tensile bolts and stand-off spacers,
which are provided with the engine.
◎ Proper cooling is vital for gasoline engines. Intake area should be
more than 45*50 mm. Outlet area should be at least as 3 times as the
intake area.
Ignition Information
◎ Install the ignition module with sufficient anti-vibration, at
least 100 mm away from the engine and in the place where not
affected by engine exhaust heat and radiation heat.
◎ Do not share the battery with receiver. Use separated battery for
ignition module. Equip an ON/OFF switch between the ignition
module and battery. Use a high quality switch such as Futaba HSW-J
or HSW-L heavy duty switch. Standard size receiver switches are
not recommended.
◎ Install the ignition module and make its cable, switch and battery
be as far as possible away from the servos, the receiver battery and the
receiver.
◎ Install the spark plug cap on the plug securely. Protect the signal wire
and high voltage spark plug cable from rubbing against fiberglass,
sharp edges of wood and metal of the fuselage.

Eagle Master Engine EME 35 User Manual ‐5‐ 
Propeller Option
◎ A wooden propeller, as well as a carbon fiber propeller, is suggested.
Do not use a nylon propeller. XOAR，HAWK，VESS and MENZ
wooden propellers are suggested . XOAR，FALCON，RED SWORD
and MEJZLIK carbon propellers are also suggested. Since there are so
many good propellers on the market, your choice is not limited to the
brands mentioned above.
◎ 18*10, 19*10 and 20*8 two-blade propellers are suggested. With the
propellers mentioned above, the peak RPM range should be 6,500 to
7,300 RPM.
Starting Process
◎ Close the choke and switch on the ignition switch. Advance the
throttle 1/8~1/4 from full closed.
◎ Flip the propeller quickly until explosive sound can be heard.
◎ After propeller stopping, open the choke and set the throttle to idle
position(or a little higher). Flip the propeller again until the engine
starts. BE CAREFUL!
◎ Warm up the engine for about 30~45 seconds. Now the engine is ready
for flight.

Eagle Master Engine EME 35 User Manual ‐6‐ 
Fuel & Break-in
◎ Use low to middle octane gas for break-in. Use the propeller same as
flight.
◎ Use a 2-stroke petroleum based oil with a mixture of 25:1 to 30:1.
Synthetic oil is NOT suggested in break-in process.
◎ With this fuel mixture ratio and regular needle setting, run the engine
for 1~2 hours. Too rich needle setting, which may cause misfiring or
erratic running, is not suggested.
◎ After break-in, you can use a 2-stroke synthetic oil with a mixture of
30:1 to 35:1.
Needle Adjustments
◎ A Walbro WT carburetor or equal carburetor is adopted. The
carburetor has two needles, which are low speed needle and high
speed needle.Low speed needle is effective through the high speed
range, while the high speed needle is not effective in the low throttle
status. Both needles are effective in the mid speed, but the low speed
needle is more effective. Default position of high speed needle is 1 1/2
turns from full closed, as well as low speed needle is 1 1/2turns.
◎ For fine setting, please tune the engine for maximum RPM with the
high speed needle by using a tachometer. Then richen the high speed
needle until the motor runs 100~200 RPM less than the maximum
RPM. Now the engine is slightly rich on the high speed needle.
◎ Furthermore, keep the engine at idle for 45~60 seconds. Check that
the idle RPM remains constant or not. If the RPM drops and the
engine stops finally, the speed needle should be too rich. Lean it until
stable idle status is achieved. Then check the transition with advancing
throttle quickly. The engine should make steady power immediately
without any hesitation. If the engine sounds hesitated to response,
please check the low speed needle again.

Eagle Master Engine EME 35 User Manual ‐7‐ 
Mounting Pattern
Carburetor Introduction

Eagle Master Engine EME 35 User Manual ‐8‐ 
Engine Maintaince
◎ NEVER mix different kinds of 2 stroke oils for flying. Before
changing oils, please clean the carburetor with pure gasoline.
◎ To avoid incident carburetor failure, please remove carburetor pump
cover and clean the built-in fuel filter every 50~100 fights.
◎ It is advisable to maintaince or replace piston, piston ring, crankshaft,
needle/ball bearing and spark plug every 300~500 flights, according to
engine status. Please consult your local dealer.
◎ Please examine and clean your engine very carefully after a crash. If it
is damaged, please consult your local dealer to fix the engine. Repair
due to crash is NOT free.
WARRANTY
◎ EME 35 engine and ignition module are covered with 18 months
warranty by Eagle Master Engine since purchasing date.
◎ The warranty covers defects of materials and assemble issues.
◎ Damage by improper installing, operation is not covered by warranty.
◎ Damage by using improper fuel is not covered by warranty.
◎ Damage by incident crash is not covered by warranty.
Eagle Master Engine，Yinghuang Technology Co., LTD
Chang Cheng Industry Park，Yongkang City, Zhejiang Province, China
Web: www.emehobby.com ; Mail: [email protected]
Tel：[phone]
； Fax：[phone]