DLE-35RA Operator’s Manual Specifications Displacement: Performance: Idle Speed: Ignition Style: Recommended Propellers: Spark Plug Type: Diameter × Stroke: Compression Ratio: Carburetor: Weight: ™ © 2014 Hobbico®, Inc. Fuel: 34.5 cc [2.13 cu. in.] 4.1HP / 8,500 rpm 1,600 rpm Electronic Ignition 18 u 8, 18 u 10, 19 u 8, 20 u 8, 20 u 10 CM6 (Gap) 0.018in.– 0.020 in. [0.45mm – 0.51mm] 1.5 in. [38.5 mm] u 1.18 in. [ 30mm] 7.6:1 DLE with Manual Choke Main Engine − 2.08 lb [947g] Muffler − 2.
Parts List (1) DLE-35RA Gas Engine with DLE Carburetor (1) CM6 Spark Plug with Spare Ignition Wire Spring (1) Muffler w/Gasket (2) 5x15mm SHCS with 5mm Lock Washers (muffler mounting) (1) Electronic Ignition Module w/ Additional Tachometer Lead (4) 60mm Engine Mounting Standoffs (4) 4x40 mm SHCS with 4mm Lock Washers & Flat Washers (propeller mounting) (4) 5x20mm SHCS with 5mm Flat Washers (mounting engine to standoffs) (1) Silicone Pick-up Wire Cover / Ignition Wire Cover (1) Red Three Pin Connector Lead
● ● ● ● ● ● ● ● ● ● 3 back to the engine and serious damages may occur during the break-in period. Break-in should be considered about the first 3-5 gallons you run in the engine. For your safety and the safety of others, please do not stand in front or in line with the propeller when the engine is running. Keep onlookers away from the running engine, especially small children. Always use a balanced spinner and a balanced propeller.
● ● ● ● ● ● ● ● ● ● ● ● 4 fuel filter. Use a filter intended to be used with gasoline engines. Metal filters intended for glow engine are too coarse and will not screen out finer particles. Always filter your fuel by using an appropriate filter before putting it into the airplane’s fuel tank. Gasoline is extremely flammable. Keep it away from an open flame, excessive heat or sources of sparks. Do not smoke near the engine or the fuel tank. This engine was designed for use in a model aircraft.
Installation Instructions Prepare the engine for installation 1. Check to see that all screws and bolts are tight. Check carefully for any cracks, broken or missing parts.Tighten or replace any damaged or missing parts before proceeding. 2. Install the silicone wire cover over the pick up lead coming from the engine (cut the excess silicon wire cover) and connect the lead to the pick–up lead from the Electronic Ignition Module. Secure the connection with the included three pin connector securing clip.
Switch (Not included) Charge Lead OPTIONAL Battery Lead Ignition Battery Lead OPTO Gas Engine Kill Switch LED (DLEG9205, not included) KILL SWITCH Rx Ignition Rx Batt Lead Ignition Control Switch Wire (To On/Off Switch) Tachometer Lead/ RPM Signal Output Ignition Wire (To Spark Plug) Pick-Up Sensor Wire (To Sensor On Engine) OPTIONAL ELECTRONIC IGNITION SYSTEM Tachometer (Not included) DLEG5525 4. Connect the ignition module battery to the on/off switch. Any 4.8 – 8.
. Secure all connections with heat shrink tubing. (not supplied) 8. Install the silicone ignition wire cover over the ignition wire to the spark plug. 9. Install the spark plug into the engine cylinder (7– 8 lbs Torque). Do not over tighten. Installing the DLE-35RA on Your Airplane Note: The DLE-35RA must be installed on at least a 3/8" [9.5 mm] firewall. The firewall must be securely glued to the airplane. Use triangle stock and pin the firewall with hardwood dowels to reinforce the firewall glue joints.
Supply Line to T-Fitting Fuel Tank Carb 2-LINE SET UP Clunk Line Make connection line between T-Fitting and Carburetor as short as possible. T-Fitting Fuel fill line Drain/Vent Pressure Relief Line Route to top-front of fuel tank interior, to prevent siphoning (2-Line Set-up) Fuel Tank 3-LINE SET UP Filler Cap or Plug This line must be extended to exit the bottom of the aircraft. Drain/Vent Pressure Relief Line Route to top-front of fuel tank interior, to prevent siphoning.
6. Connect the ignition wire from ignition module to the spark plug. 7. I n s t a l l t h e muffler onto the engine. Be sure to use threadlocker and that the ignition wire does not contact the muffler. 8. Install the exhaust tubes and clamps onto the muffler. 9. Cut all necessary clearance, carburetor adjustment, cooling, and exhaust holes in the cowl. 10. Please ensure the sensor wire is supported as close to the sensor pick-up as possible.
3. Next, set the engine at the beginning of the compression stroke. Note the position of the ignition magnet with engine inverted. 4. Place the propeller on the crankshaft at the one o’clock position. 5. Mark the location of one of the outer holes while the propeller is in the beginning of the compression stroke position. Use a GPM Dead Center Hole Locator (GPMR8130) to center and start the hole.
6. Remove the propeller from the engine and drill the outer hole on the drill press using a #35 (.110"/ 2.81mm) drill bit as a pilot hole. Next use a #22 (.157"/ 4.01mm) drill bit to finish the hole. In order to achieve a clean finish on both sides of the propeller, drill only half way through the propeller with the finishing drill bit. Then flip the propeller over and drill completely through the hole. 7.
TX switch assigned is in the on position. The LED should be illuminated red to indicate that the ignition is armed. 6. Flip the propeller counter clockwise several times briskly. 7. After you hear some initial firing sounds, move the choke lever to the OPEN position. 8. Set the throttle to a high idle. Set the propeller so that it’s at the beginning of the compression stroke 9. Flip the propeller through compression rapidly.
Engine Troubleshooting If your engine fails to start after the preceding starting procedures please check the following.
Adjustment of the Engine Each DLE Engine has been factory preset. However, higher elevations will influence the performance of the carburetor. To obtain optimum output of the engine, slight adjustment of the carburetor maybe necessary. For safety reasons do not make adjustment to the carburetor while the engine is running. Engine Functions and Adjustments 1. Choke Control (the choke control should be used when the engine is cold) 2. Throttle Control 3. Idle Adjustment Screw (adjust the idle speed) 4.
or factory setting of the Low-speed Needle is as follows: turn the needle to the fully stop/closed position and then turn back 1.5 turns) High Speed Needle Adjustment Turning the High-speed Needle (No.5) clockwise will lean the fuel/ air mixture at high speeds. Turning the Low-speed Needle (No.5) counter-clockwise will richen the fuel/air mixture at high speeds.
Problem: If Engine stops at full throttle. or Engine hesitates when accelerated rapidly. or The engine will not come up to full rpm at full throttle. Solution: The high-speed needle valve “H” is too lean. Open it up 1/8 of a turn and try again. Problem: If Your engine does not reach full rpm. or Carbon build-ups appear consistently on your spark plug. Solution: The high-speed needle valve “H” is too rich. Close it up 1/8 turn and try again.
Optional Digital Tachometer (not included) An optional DigitalTachometer (DLEG5525) is available that can be directly connected to the ignition and display the RPMs of the engine. This unit can be installed on the aircraft or used to spot check the Engine RPMs. Do not install or uninstall the Digital Tachometer while the engine is running. Many of the DLE Ignition modules have an additional lead to plug into the optional tachometer.
Warranty Information The DLE-35RA has a two year limited warranty through Hobby Services beginning at date of purchase. Please retain your receipt as your proof of purchase. Contact Us Hobby Services 3002 N. Apollo Drive Suite #1 Champaign, Il 61822 Ph: 217-398-0007 Fax: 217-398-7721 E-mail: hobbyservices@hobbico.com Web address: www.hobbyservices.
Replacement Parts Mfg Stock No.
4.33 in. [110 mm] 2.36 in. [60 mm] 6.30 in.
3.15 in. [80 mm] 2.13 in. [54 mm] 2.76 in.
DLE-35RA Mounting Pattern 2.76 in. [ 70 mm] 2.13 in. [54 mm] 3.15 in.
