i had an 86 gme 500 , in about 92 for a few years , even 8 years old and ragged around the edges ,was fast , reliable and the only way to ride it was on the power , it was very heavy and very long , and i still miss it ,i sold it to someone in brisbane ,about 11 years ago , due to partner pressure , the rad shrouds were in sheet alum.and one radiator i had made was copper as i couldn,t afford the $2500 for a new one , then parts for it were hard to get and expensive , about $900 for a piston kit