I HAVE A YM1700 THAT RUNS HOT WHEN I PULL A 42" BUSH HOG .I HAVE TRIED THE MANY FIXES I HAVE SEEN POSTED,BUT NO SUCCESS.I WOULD LIKE TO PUT A WATER PUMP ON AND WAS TOLD THAT A PUMP FROM A YM2000 WOULD BOLT RIGHT ON.IS THIS TRUE?DOES ANYONE KNOW WHERE I COULD GET ONE ? WHAT ABOUT COST ? WILL I HAVE TO DO ANYTHING TO THE THERMOSIPHON SYSTEM IF I PUT ON A PUMP? ANY ADVICE WOULD BE GREATLY APPRECIATED.