I have had so much help from people on this board I thought it wouldn't hurt to post another question. I have a 77 Batavus Regency that worked well for pretty much all last summer. I tried starting it last week and it starts but barely. It runs when I turn the throttle but its a lot quieter and it does not turn the back wheel at all. Im confused because I completely cleaner out the carb and am not sure what it is. Could it be the idle screw? thanks in advance for your help.