That is another thing slowing me down, my hands bleed after doing carbs or anything using solvent or fuel for that matter. The last two carb jobs pretty much done me in, one set was off a CB 550 and they had to be removed 3-4 times, the guy seen it run but when he came back that evening to get it, it wouldn't run. Problem moved to a different carb each time, gave up on it. The last one was a 900 Eliminator, that bastage had to be done 2-3 times and it finally ran like a top, I rode it a couple different times that day with no problems and the next day I went to the garage and it was sitting in a big puddle of gas. Float related and didn't want to do them again. As far as racked carbs I'm not on a very good success rate.