RCU Forums - View Single Post - OS 91 fx tuning problem! HELP!!!!

07-18-2009 | 06:09 PM

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Stripes

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From: Orchard park, NY

RE: OS 91 fx tuning problem! HELP!!!!

Quote:

ORIGINAL: usafloadc17

I recently acquired a .60 size stinger with a os 91 fs max . . .

Your title says FX your first line says FS. You do know that early Fx engines had a problem with the needle valve, right?

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