I have an 06 carb M7 that seems to load up when I first take off. When you hit the throttle it blows out black smoke then clears out and runs good on the top end. It has the Bikeman pipe mod, slp can, 15:1 RKT head. The think runs awesome when it cleans out but I think I am jetted to rich, any ideas. It has 340 mains in it now and I ride between 6-10k.