hey guys need some help, so basically my bike is running to rich and clogging the spark up its black as you like. its a 25m dell carb, on a 180 runner, any ideas what setting the mixer screw whould be on ? runs for like 30 mins then dies due to spark being black. :banghead:
choke stuck on maybe....or over jetted...or needle too high...or pilot jet too big...or mixture screw set wrong
