Recently picked up a 1984 ATC 110 that had been sitting for awhile, had broken exhaust pipe, but after cleaning carb was able to start. Put on an exhaust system, now trike will turn over a couple of times on full choke and throttle but not start and stay running, cleaned carb out again, same issue, has good spark, any thoughts?

 

how is the compression? make sure fuel is flowing from the tank

 

was a compression problem, adjusted the valves, now it is actually the best running machine in the garage, my son loves it

 

glad to hear it! its nice when its a simple fix