my dad has a 1979 jr50cc minibike the engine is locked up cause it sat so long my dad bought it new in 1979 so its a one owner i am looking for an engine and possibly a frame my brother and i rode it till we were bout 10-11 years old  wich was rael hard on it but i am 29 now and my son is almost 4 so im attempting to fix it for him if you have any info where i can look please drop me a line                                                                                       sicerely    mike thompson