it was sitting for about five years and i just got it running. it seems slugish when i hold the throttle wide open but once the rpm's come up it is ok. it will not idle unless i adjust the throttle cable so it has a high idle. i have completely cleaned the carb and got new plugs. i drained the old ful and put in new fuel with some marvel mystery oil and also put some in both the cylinders. i have tryed playing with both the air fule misture screw and the idle screw and still cant get it. i was just wondering if anyone could help and also if anyone knows the correct amount of turns the mixture screw should be at from tight.