Need a little help with my '92 TDM. Was on a ride this past spring when suddenly the bike started surging while at a steady speed. Sometimes actually bucks a bit. If I give it a bit of throttle it accelerates fine but goes back to surging/ stuttering as soon as I go back to a steady cruise. I've taken the carbs apart twice for cleaning, changed jetting, plugs, wires, coil, rebuilt the petcock, cleaned out and coated the gas tank, new fuel filters, etc. Most of this was just done for maintenance sake since the previous owner neglected it. But there has been no change in the surging. Any ideas as to what I might be missing?
Thanks