I have a Chinese Qingqi Qm200-2A cruiser style motorbike. Its a 200cc 4 stroke single cylinder engined machine. Its a great little bike but the tick over is all over the place. I adjust the throttle stop screw on the carb to get a steady tick over but after opening the throttle a few times the tick over changes again and is impossible to get right, it also stalls sometimes just after starting off on a journey. I have cleaned out the carb to no avail. It has Electronic ignition so not much to test there. No manual is available for it and parts are also impossible to obtain but many Jinlin parts fit. I really like the bike accept for the tick over problem so Can anyone help, its driving me nuts.