OS GF40 Four Stroke Petrol Engine

This the first four stroke Petrol from OS engines. It dose exactly as it says, you get the benefits of a petrol; economy, reliable tick over and cleanliness in a four stroke.

• Quick, powerful response makes it an ideal choice for aerobatic as well as scale models.
• Perfect for scale aircraft, with a deeper exhaust tone that mimics the sound of full-size aircraft.
• Features the GT33’s mounting bolt pattern and mount-to-drive hub distance.
• Outstanding fuel economy – runs on a mix of engine oil and standard petrol.
• 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.
• PCV (Positive Crankcase Ventilation) system recirculates blow-by gas and oil waste for a cleaner engine and environment.