Ideal for aerobatic or scale aircraft, the 4-stroke GF40 offers added torque and a more realistic sound, plus gas economy and the fit and finish O.S. is famous for. It also includes an ignition module that eases starting and automatically adjusts timing to throttle settings. Other features include a Walbro® carburetor and an integrated choke rod guide that simplifies installation.
Prop Range 18x8-12 - 20x8-10
RPM Range 1,800 - 9,000 rpm
Muffler Weight 113g
Ignition Weight 95g
Bore 1.57 in (40mm)
Power Type Gas
Plug Type CM6 Spark Plug
Stroke 1.25 in (31.8mm)
Displacement 2.44 cu in (39.96 cc)
Engine (Only) Weight 1200g
