I need a new CDI for my GK73 (1988)

Does anyone know if i can use one from a 1984 bike? or where i can buy a new one from if such things exist?

Hi Caz,
D'nt know if the later one would work but the part No.s are not the same. I remember some of the guys got new cdi's from on fleebay so look back a page or two. think it was ripzy.