SPECIFICATIONS:
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: 14×10, 15×8, 16×6, 16×8, 17×6, 18×6
(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

DLE Engine

DLE 20CC Gas Engine