Ok.. Since I bought this one pre-built, and did not do it myself, I got no directions and I am just learning it. The engine will not idle.. It runs fine when I work the throttle, even after warming up. How do we adjust the idle speed on these little chinese engines. Also, can we shorten the throttle cable at the carb any? I have both adjusters spun all the way out, and there is still a little play in the cable and I could get it tighter, maybe a little more throttle. THANKS.. I am working on motoring my other OCC chopper in Feb. I am going to start ordering parts soon!