Previus owner had kn pods and marshall on. I think

Never seen it together, but now i have put it together. Cleaned the carbs totally, and not knowing that the standard needels where replaced with some with clips on. Taking it for a test drive, think it gets to much fuel. Black sparks. No pull in the rews.
Cannot remember the jetting size. Think they are stock.
Whats the best config. For the carbs, with stock airbox and papir filter and marshall exhaust? Got stock needles from a rep. Kit i bought for overhauling the carbs.
Sorry my bad scholl english
