I finally got the ped from hell to start. However, in order to keep it running I hafta give it plenty of throttle, as soon as I let the throttle go, it dies. It's got new piston, rings and cylinder so I'm a little tentative with the throttle. So my problem is it's not idling. I think there is only an air screw on the carb, unlike some that have an air and idle screw. Should I try adjusting this slightly ? Any ideas are by all means welcome. This is a mobylette to avoid any confusion. Thanks !