no start

Evening Friends, Ill state briefly that the current issue im having is cranking not starting. Last time it ran was about 2 months ago....Bike has been sitting with gas in carbs since then... In my mission to get this bike starting reliably and running, I've been chasing my tail. Moments...

My 82 supersport struggles to turnover, I have replaced the battery, battery cables, checked and double checked all connections. I hooked the battery straight to the starter all with the same results. The engine will turn over fast if the spark plugs are removed. I have checked the compression...