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OS FS-26 Serial Numbers

Old 01-20-2020, 09:37 PM
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sosam117
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Default OS FS-26 Serial Numbers

I have recently purchased "two" OS FS-26 four stroke engines.
I would like to know how do you know what the serial numbers are?
All I have found on the underside of one of the mounting lugs are two letters. One is "AH" and the other is "FH"
Does the "H" mean they were built I the same year?
Does the "A" stand for January and the "F" stands for June?

Thanks,
Mike Mac
Old 02-09-2020, 07:03 PM
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Bax
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They don't have serial numbers. The letters on the bottom of one of the mounting lugs is a production batch number. It bears no resemblance to year/month or such. It has meaning only to O.S.

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