when it blows black smoke, is it still cold? don't rev it cold
i've heard about and experienced this on my stage 1 KP, it'll roll coal if you rev it cold, it also use to foul plugs before i reset the idle(unF'ed it) and cleaned the throttle bodies,but yours shouldn't have this problem. where is your idle set?
its my understanding that the bike will overfuel if the idle drops to low, dont quote me on it though, i just read it long ago.
2007 Hammer S 100CI
S&S air cleaner, PCIII, SRVT clubs exhaust, Avon grips.
2006 Kingpin 100CI
stage 1, touring setup to come soon...nm bought a XC.
2013 Sunset red and black XC