Hi guys, i just got my Ozark 250 yesterday and it will not idle. It runs great with some help of the throttle, and after beating the snot out of it it seemed to want to idle a bit better for maybe 5 seconds. I disassembled and cleaned the carb in my ultrasonic cleaner, and made sure all jets and internal passages were spotless. I also made sure the idle adjustment was free and moving as it should. I put the carb back on and it changed nothing. The choke doesn't seem to change anything at all, and when i pulled the plug out it was pitch black. I haven't touched the air/fuel screw because it still has a cap on it and I'm not sure if i have to drill it out and replace it with an adjustable one. One more tidbit of information: i opened the airbox to find there was no air filter. I do not have an air filter for it, so is it possible that it needs a bit of a restriction on the intake side? I figured if that had anything to do with it it would run lean and not rich but i figured i would ask. Also, the idle adjustment knob makes no difference at all. I adjusted the throttle cable to up idle speed enough to stay running, but after riding it a bit it started idling way too high. I then readjusted the throttle cable and it died, i fired it back up and it still won't idle. Any thoughts?