DLE-20cc Gas Engine w/EI & Muffler (DLEG0020)

• Two sealed bearings on crankshaft-simple design for lighter weight
• Beam mounting allows easy fit in the same mount as comparable glow engines
• Aluminum alloy crankcase with advanced CNC machining
• Rear mounted pumper carburetor ensures easier installation and smooth
• idling and dependable fuel flow during flights
• Fully automatic electronic ignition

• Engine, spark plug, ignition, muffler, muffler gasket, two 5x20mm
• muffler bolts and instruction manual 

Gasoline with at least 87 octane rating
2-cycle oil, mix ratio for this engine is 30 parts gas to one part
oil and must be followed exactly for warranty consideration
and optimum performance
4.8 - 6V NiMH/NiCd, or 6.6V LiFe or 7.4V LiPo battery for ignition
(separate receiver style pack can be used) (LiPo & LiFe requires
voltage regulator)
Propeller and field equipment

Output Power: 2.5 HP at 9,000 RPM
Idle Speed: 1,750 RPM
Static Thrust: 6 kg Pulling Force/100 meters altitude
5.3 kg Pulling Force/1,800 meters altitude
Displacement: 1.22cu in (20cc)
Bore and Stroke: 1.3 x 1.0" (32 x 25mm)
Compression Ratio: 10.5:1
Weight: Engine: 22.93oz.(650g)
Exhaust: 1.76oz (50g)
Ignition: 4.23oz (120g)
Total: 28.9oz (820g)
Gasoline/Oil Mixture: 30:1
Gasoline Octane Rating: 87-93
Recommended Propellers: 14x10, 15x8, 16x6, 16x8, 17x6, 18x6
(break-in prop not specified)
Ignition Battery: 4.8V min,max as marked on electronic ignition unit.
If marked 6V max, BEC required if LiPo battery used.
Newer ones may be marked 4.8V to 8.4V.
Replacement Spark Plug: CM3, DLEG2126
Spark Plug Gap: 0.018 - 0.020"
Plug Installation Torque: 7 - 8ft-lbs
Carburetor Adjustments;
Low Speed Needle: 1.5 turns out as a starting point, adjust for a smooth idle and a reliable transition to high throttle
High Speed Needle: 1.5-2 turns out from closed, adjust needle to peak RPM, if engine slows or dies at full throttle, the high-speed mixture is likely too lean
Height from bottom/Crankcase to top of Cylinder Head: 5.4" (138mm)
Height/bottom/of Mounting Tab to top of Cylinder Head: 3.4" (87.5mm)
Width of Cylinder Head: 2.5" (65mm)
Width at Mounting Tabs: 2.8" (70.5mm)
Distance/Mounting Hole Centers Same Side: 1.0" (26mm)
Distance/Mounting Hole Centers Opposite Side: 2.4" (60mm)
Height of Exhaust Opening: 0.42" (10.8mm)
Width of Exhaust Opening: 0.83" (21mm)
Length from Carburetor to Front Bearing: 4.5" (114mm)
Length from Carburetor to Prop Hub: 5.1" (130mm)
Total Height of Muffler including Exhaust Pipe: 3.8" (96mm)
Center of Muffler Exhaust Opening to end of Pipe: 2.4" (61mm)
Muffler Width: 2" (52.1mm)
Exhaust Pipe Inner Diameter: 0.56" (14.2mm)
Crankshaft thread size: 8mm x 1mm 

To avoid permanent damage to the electronic ignition system, NEVER
turn your DLE engine over with the system switched on and the plug
not installed.