Got home from the lake and when looking over engine bay for excess water I noticed that a exhaust bolt looked loose. Put a allen wrench on it and it spun right off. Looked at the bolt and it appears that it had some attempt for a fix done to it. Noticed that the bolt next to it is broken off as well. It is a used ski I just got about a few months ago. I assume this shouldn't go un fixed. Could I take the remaining bolts out and pry off exhaust and remove the broken bolts after?? Anyone done this recently that could lend some advise??