I bought a Max IV with the Kaw. motor in it. When you go to start it you have to use the choke, now matter if its a cold start or hot start. Also it seems like it idles to fast, when I set the idle down it dies. I don't have a tach so not sure of the rpm. It almost sounds like the idle jet could be plugged and the PO just raised the idle speed to compensate for it. Any thoughts?