Offers traditional 4-stroke benefits with the ease and economy of a gasoline engine.
Quick, powerful response makes it an ideal choice for aerobatic as well as scale models.
Perfect for scale aircraft, with a deeper exhaust note that mimics the sound of full-size aircraft.
Features the GT33s mounting bolt pattern and mount-to-drive hub distance.
Outstanding fuel economy runs on a mix of engine oil and standard gasoline.
Rear-mounted carb designed by O.S. & Walbro.
Lightweight ignition module accepts NiCd, NiMH, LiPo or LiFe battery power.
Muffler and integral backplate mount included.
Backplate features an integral choke rod guide.
PCV (Positive Crankcase Ventilation) system recirculates blow-by gas and oil waste for a cleaner engine and environment.
The compact IG-04 ignition module provides fast, easy starts with most types of batteries, including LiPos and LiFes.
The GF40 includes a F-6040 muffler. A repositionable exhaust lets you divert exhaust residue out and away from your plane’s finish.
The carburetor, developed jointly by O.S. and Walbro, is rear-mounted for easy installation and adjustment.
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. The GF40 includes a muffler, spark plug and a 2-year limited warranty.
