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Posted
trying to dial in my carb i have a 220 main in a 34 keihin pwk and im still lean on the top end do the make bigger than a 220 for this carb tks

Have you done a plug chop to see if you are really running lean? I have the same setup, trinity stage IV 2 to 1 in take and I run a 180 main jet and needle clip on top slot. and my bike runs perfect. I'm in florida were it is always hot, I don't know where you are at............

Posted

If the plugs are black, you are too rich. This is probably why it's not running right up top. Go down 2 jet sizes, and run it, to see how it acts. If it was lean, the plugs would be white, or light gray. Before re-jetting, start it up, let it warm up, and then pull the choke out to see if it runs better, or worse. My guess is, it will run worse. If it runs better, you're too lean, but if it runs worse, it's too rich.

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