Well my engine went bang a few months back, main bearing went, snapped the crank and did the con-rod in. Rebuilt and the bike ran sweet, last weekend it decided to put the rod through the front of the engine this time . I was able to pull the piston out of the engine at the side of the road lol. The engine is a complete right off in terms of rebuilding, there are obviously salvagable parts. I now need a 2004 onwards 450,550 or 650 engine would be interested in one that had gone bang and needed a rebuild or one that has just been rebuilt and is suitable for SM road use. Any ideas? thanks