O.S. FS-120S-III 1.20 Four Stroke Glow Engine
[OSM35540]

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This is the OS Engines FS-120 Surpass III four stroke ring engine, with 70N carburetor and pump. Tremendous 4-stroke power for high-demand applications!

Features:

• New regulating style pump delivers better response and is more reliable
• Quieter than before, thanks to a larger muffler
• Rear ball bearing is greased internally and rubber-sealed on both sides
• The crankshaft, cam shaft and piston ring are plated to resist corrosion
• Features a reversible carburetor and black rocker cover

• Displacement: 1.2 cu in (19.7 cc)
• Bore: 1.197 in (30.4 mm)
• Stroke: 1.083 in (27.5 mm)
• Practical rpm: 2,000-12,000
• Output: 2.1 hp @ 12,000 rpm
• Weight: 32.5 oz (920 g)
• Recommended Props: 14x9, 14x10, 14x11, 15x8, 15x9, 15x10, 16x6