I just got the bike and I could only get it to run with the choke on and if I touched the choke lever or the gas it would die. I took off the tank to remove the old gas thinking that it might have been the problem and found the vacuum line to the petcock had a hole in it, I replaced that. I put the tank back on and put some gas in it and same thing. I took the tank back off and started cleaning the carbs and found both of the diaphragms were stuck. I go those unstuck and I was running the bike without the gas tank on it, I had the petcock vacuum line plugged, and all the rubber connections to the air boxes are removed and it would still only idle and if I touched the gas it would die. I am pouring gas into the fuel lines to test it. I am wondering if the air box connections being off have anything to do with the problem or should I keep cleaning the carbs. As a side note I know who ever had the bike before me did remove the carbs before and might have messed something up, the guy did not seem to bright.