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Old 06-11-2004 | 09:26 AM
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flasher2001
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From: ROCKINGHAM, NC
Default replacement o-ring help
i have two discontinued OS engines and i need the high speed AND low speed needle o-rings for both engines. they are the...

OS 40 FSR and
OS 45 FSR ABC.

i think they have the same carburator - OS item # 4BK

also, is there a source for the piston/cylinder assembly for the 45 FSR ABC?
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