FG-73R5 73cc 5-Cylinder 4-Stroke Gas Radial Engine (SAIEG73R5)

FG-73R5 is Saito's 73cc, five-cylinder, four-stroke gasoline radial engine designed for large-scale RC aircraft. As the first five-cylinder gasoline radial from Saito, it combines a convincing scale appearance with the smooth, reliable performance and distinctive four-stroke sound that premium gas engines are known for.

Easy starts and dependable operation come from a 2S Li-Po-compatible electronic ignition, while the rotating-barrel carburetor ensures reliable fuel feed in any attitude. A heat sink helps cooling under demanding conditions, and the package includes flex exhausts, an engine mount, and ignition hardware for straightforward installation. For lubrication, a synthetic oil such as Red Line or Power Model at a 16:1 to 20:1 mix is recommended.