2003 rm125 clutch problem?

just brought a 2003 rm125 and when i put it in gear the bike starts to pull away untill you rev it ive tryed ajusting it but it still doin the same thing does anyone no wat it could be

sounds like it just needs more adjusting ... have you just adjusted up by the clutch perch on the bars? sometimes there is adjustment capabilities down on the engine end of the clutch cable too (not sure on this exact model).there is a possibility that the clutch cable is stretched and needs to be replaced.worn plates or weak springs another possibility...