cody: i don't know the year of your ulysses but every 1203 model i've owned which including uly's is probably 12 or so by now...all bucked and banged when cold regardless of year...which seemed to coincide with when they were in "open-loop" warm-up mode. i resolved this on all the pre-2008 models with a generic "race map", a dedicated ground from the rear dog-bone braided wire to the negative batt cable ground source in conjunction with all you've already done. though it doesn't always activate the CEL and store a fault code.... an O2 sensor heading to death-row causes the "bucking bronco" effect after the bike has warmed up.