O.S. Engines

FR7-420 Sirius-7 7-Cylinder This is the O.S. Sirius7 FR7-420 7-Cylinder 4-Stroke Engine. Features Main internal parts such as the crankshaft, cam holder and reduction gear are all plated to resist corrosion V-shaped individual valve covers for vintage scale appearance Impeller system distributes air-fuel mixture equally to each cylinder ensuring high performance and smooth idle Padded and lockable aluminum silver colored storage case Two year limited warranty through Hobby Services beginning at date of purchase Includes O.S. Sirius7 FR7-420 7-Cylinder Sirius 4-Stroke Engine, seven type F glow plugs, valve adjusting kit, radial mount & hardware kit, needle valve extension cable, drain plug, carburetor insert, decal, glow plug cable set, instruction manual and aluminum case Requires Fuel: Aircraft blend 5-10% nitro content with 8-10% lubricant content (it is suggested to dilute commercially available 15% nitromethane and 18% lubricant fuel with methanol half and half to make a 7.5% nitro and 9% lubricant fue...