woodruff key had sheared.
ive changed that, cleaned the carb, new air filter and plug.
bike starts fine now and ticks over fine but just off idle is acting strange. air mixture screw doesn't stop or improve the problem.
with a tiny amount of throttle then let go the bike carries on to slightly rev more but in a lumpy way not clean revving then doesn't come back down to idle quickly or cleanly aswell. after this point it revs cleanly off the throttle and comes back down clean until this point then acts strange until decides to tick over.
any ideas what to check or could be? thanks