O.S.Max FS Series FS-40 Surpass Type 4-Stroke Displacement .396 cu in (6.47cc) Bore .835" (21.2mm) Stroke .724" (18.4mm) RPM Range 2,200-12,000 Output (HP/rpm) 0.65/12,000 Weight (engine only) 12.5 oz. (354g) Crankshaft Thread 1/4"-28 Propeller Range 10x5 - 12x6 Included Muffler/Header, #F Glow Plug Decal Sheet, Instructions
More information (links): *Instructions and Dimensions Please contact us for any spare parts. 2 Years Limited Warranty