[NSRCA-discussion] OS 120 AX

[Bob Richards]

I acquired a plane with an OS 120AX installed, and seem to be having some issues with it. It came with an APC 16x8 prop and stock muffler. Is not running as well as I think it should, but I did figure out I had some bad fuel. I plan to go out again today and tinker with it some more.
   
  What fuel, prop, and what rpm figures should I be seeing?
   
  Thanks in advance.
   
  Bob R.
   
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