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  1. Cambertire11

    28mm OKO jetting questions

    The reason I ask is I have the carb open now and could easily make a change before I do the air screw then chops (yes I read the links) I wonder what main if a Mikuni is "330" w lrd? GREAT links
  2. Cambertire11

    28mm OKO jetting questions

    Wow! Nice thanks, I have not yet read the links but I will. The OKO 28 is new and the needle is what it came with. I swapped the jets out from my 30mm oko, see this thing used to be a 240, now back to stock so I went w a 28 and my old 30 was/is worn on slide anyway. I did not switch needles. But...
  3. Cambertire11

    28mm OKO jetting questions

    I have a fresh stock top end with milled head to get 165 to 170 cranking compression 28mm OKO carb (new) w spacer and reeds no airbox lid Big adjustable pipe w silencer freshly packed 152 main middle clip 45 pilot air screw 1.5 turns out Summer air temps in Wis. 32 to 1 starts easily takes a...