Hmmm spent around 2 hours earlier trying everything discussed and no luck. One thing I need to try which is a good idea is what crucialRC said- I do indeed run it in grass. Hope it’s this otherwise- well I don’t know what will happen then! When I pull it it fires and then dies immediately, then it does not fire any longer until I remove the fuel lines and get all the fuel out the carb, then it will fire and die again until I put the lines BACK on. Seems to be stuck in a cycle of flooding itself until it’s starved and then it will just flood itself again!How did you run it when it was running? In the grass? If so, do you have outerwares on the pull start? If not, could be grass stuffed in between the gap of the coil pickup and flywheel. Ask me how I know. That's when outerwares were bought.