Hello all I went to replace my primary clutch on my 09 m1000 today, l spent about three hours slowly adding pressure and tapping the puller as went. The puller snapped off a couple minutes ago. The puller and new clutch came from mcb performance. The sled has almost 1300 miles, clutch has a date stamped in from 08, after the puller snapped I looked at the original clutch bolt and it looks like that/ was not torqued very high, took no force to loosen it. Am I dealing with bad. Threads and that's why the puller broke? Is it just that stuck? Added heat for a while with no change, at this point I think I need to disassemble the clutch and welders a nut on the old puller but nay other advice would be appreciated. 
