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Old 04-18-2008 | 08:40 PM
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Kmot
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Default OS FS-20
Yes, I know it is out of production.

But I got a used one, adjusted the valves, and tested it.

Master Airscrew 9x6 Classic, Powermaster YS 20/20, OS "F" glow plug. 85°F OAT.

10,800 RPM peak.

http://media.putfile.com/OS-Engines-FS-20-Four-Stroke
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