I had one that leaked in the fins. I bent them over tight and sealed them with epxoy or jb weld I can't remember which one. It worked for over 4 plus years of racing/riding and was still working fine the day I sold it. I had originally took it to a rad shop to have them weld it, they did nothing but burn through it and made the a crack (leak) into a hole (unuseable) but the epoxy/jb weld thing worked amazing. Ask at your local dealer they may know which one to use sorry I can't remember.....Good luck
