Hey guys,got a issue i would like to run past ya. I called myself diggin thru old post and couldnt find anything. My ole bonecrusher,84 200s, almost always fires up first pull,even after sitting for a spell. If its warm out i use half choke,cold full choke n kick choke off right away,idles ok for about 10 seconds and starts to climb,let it idle high for a few minutes and it will start coming back down till it stalls unless i feather throttle to keep it lit. I can turn idle up a titch,idles perfect for about 30 seconds and starts idling high and staysthere till i idle it back down,idles perfect for 30 seconds and just keeps repeating this process over n over. Runs great while riding,dont break up in any of the low,mid or high ranges. Carb has been cleaned several times of corse. So for a process of elimation i did compression test(right about 150)put on a new intake boot and o rings,swapped on the X carb and throttle assembly,ignition coil,cdi and the whole pulse gen.(the x runs perfect,starts first kick blabla bla with no issues)and also sprayed start fluid,wd40brake cleaner,propane,anything to detect a intake leak. No leaks on exaust,valves are adjusted,but after swapping all that on it still does it. Now,could a worn cam chain cause this? It is worn but is able to be adjusted to where there is no slapping or noise ect. Only other thing i can think of is that chain or the stator.. I even put the S stuff on the X and it did fine other than starve a little on top due to smaller carb. Spark plug looks beautiful.Any ideas would help alot....thanks for reading and hope some one has a clue as im kinda baffled