i have a vale onslow 250cc scrambler year 1983 the kick start spline is wrecked ,but the spline coming out of the engine is good can anyone help me ? or where can i buy new/used kickstart from ?

hi there any one know,what could be...its running normally,only when u put first gear and try to go-(when i m holding clutch get death..only if i keep higher ref its fine)mean when i go a use rear break and put lower gear try hold clutch its die..dont know if clutch needs change or maybe air...