steos right more info is needed really but if its a honda clone engine(more than likeley) then on the right hand engine cover (kickstart side) you will see a screw and lock nut in the middle of the cover,undo the lock nut a turn and screw the screw inwards until it stops then undo it quarter of a turn and hold it still and lock the nut back up,this will adjust it correctly.ok alloow about 2-3mm of free play on the clucth lever to avoid clutch slip or drag
adam bike doctor
November 2009