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Old 10-26-2007 | 12:38 PM
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Red B.
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From: Jonkoping, SWEDEN
Default RE: OS Max engine designations

ORIGINAL: hankster211
What do the letter designations on OS Max two stroke engines indicate? anything? FS FX FP SX FSR etc
Go have a look at the [link=http://www.osengines.com/history/ostimeline01.html]OS engines timeline[/link].
Even though OS may have tried maintaining a system to the naming of engines there are many deviations.