Hi all, I recently got my 601 started after years of sitting. However now it’s having a lot of issues running smoothly. I can only get it started with the choke pulled out all the way, and as the engine warms, I push it further in and then it just dies. There have been occasions where it will be in neutral and it will start to rev uncontrollably, and even when I turn the ignition off, it continues. Any ideas?? Thanks!