Bax,

I have an OS FT 160 Gemini Engine # is: 2743. How can I tell if it has the old style carb, or the new style? Also, are accessory parts available for this engine? In particular, I need the prop spacer (I'm not using a spinner for this application, and the prop nut bottoms before the prop is securely clamped).

Can you tell me what size plumbing tubing is needed to extend the exhaust?

Thanks,
Bill, AMA 4720