2000 rmk 600 with brand new wisco top end only put a new top end in it bc It's bore out to a 667 now and it hasn't had one ride yet on the new top end it has 1500k on the sleds entire life only witch is brand new basically and this thing is really clean and in amazing condition and has had just about every part in the engine bay switched to brand new ones just cuz I thought might as well just all brand new everything if I am doing bunch of matter upgrading so I did and a brand new belt and all new clutch components and carb rebuild kits done and new hand warmers even like everything down to even new gas lines but ye this sled is in amazing condition and I mean AMAZING CONDITION