This is the Gasoline Powered GGT15 Engine w/E4040 Muffler from O.S. Engines.
Ideal for larger 2-stroke .61-.91 class models, and 4-stroke .91 class models.
Starts easily using a glow driver and glow plug-eliminates ignition module and reduces weight
61H carburetor with PD-08 pump system
Shell type roller bearings
GGT15 Engine w/E4040 Muffler, #G5 Glow Plug and Instructions.
Fuel: Gasoline and 2-cycle oil in a 50:1 mixture
Propeller depending on aircraft: Sport 13x8-11, Acro 14x8-10 & Scale 15x6-8
Glow starter & field equipment
Displacement: 0.912 cu in / 14.95cc
Bore: 1.091" / 27.7mm
Stroke: 0.976" / 24.8mm
Practical RPM Range: 2,000-11,000
Output: 2.35 ps/2.32 hp @ 15,000 RPM
Weight: Engine: 610g
Crankshaft Size: UNF 5/16-24
Rearward Needle Valve Angle Relative to Engine: 30°
Needle Valve Adjustment:
Gradually open throttle fully when engine is started.Close needle valve 30-45° increasing RPM.
When RPM starts decreasing, close needle valve 60-90°, then open slowly 15° per second as RPM increases
Open needle valve 90° further from point where max RPM is obtained.
Fly model until running in is completed (10 tanks of fuel)
After running in is completed, set idle around 3000RPM Stop engine, close mixture control valve 15°, note idling RPM
90° opened position from where max idling RPM is obtained is optimum mixture control valve position
Mixture Control Valve Position:
Never try to adjust until needle valve adjustment is performed.
Open mixture control valve one turn (360°), open & close a few times to be sure there is no resistance during throttle movement.
Close mixture control valve 30°.
Rotate throttle until resistance is felt when opening throttle from closed position.
Open mixture control valve approximately 90° from this point-this is the initial mixture control valve position.
This product was added to our catalog on Friday 26 September, 2014.