March 27, 2013 1:16 AM PDT
It sounds like you've got a fractured crankcase. Specially if this keeps happening. And...it also sounds like you may be overtightening the bolts, to over compensate, thus causing further problem. Full agreement on both Terry and Lucky on this whole issue. I had two nineties era bikes, and never had these issue's myself. And make sure you're using a quality head gasket sealer. Don't scrimp, or that could come back to bite ya in the ass.
Ride Free
Tweek