i have a 1989 dt125r which has a dep exhaust system,performance reeds ,working power valve and when it hits the powerband it goes very well,but when at very low revs it will not tickover and will die when opening the throttle,from about 3000rpm it is fine
i stripped and cleaned the carb and found nothing amiss,in fact it was clean so it is not blocked jets ,the main jet is 210 ,when starting the bike does need choke ,but when it has been run for a couple of minutes it will start fine but you have to catch it on the throttle to get it to rev
ps i cant give the bike max revs yet due to running in and the engine is turning freely
any help would be appreciated