What jet sizes are recommended for ear shave and a de-goat? I've got aftermarket pod filters and placed a straight pipe in place of the goat's belly. I originally went with 145 mains and 42 pilots just because that's what the kit I have came with. After about 800 miles on it, I checked out my spark plugs and they were black and sooty. So I changed out the mains for 140 but I don't have any other pilot jets. I have the mixture screw out 2 turns. What do you guys recommend I do?