Have had 3 savages, and those have had 4 motors between them and trust me its possible to blow it up. I actually think its got a great lower end - connecting rod and below, but a absolutely crappy top end. The Cam chain tensioner and cam chain is another disaster waiting to happen.
Great lower 1/2 though and cheap and easy to rebuild if needed, ever needed. Roller bearing bottom end ...
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The top end could have been roller bearinged too. Cam shafts - easy. That will have left the valves as its only vulnerability. Plenty bad, cos the one motor that blew, broke a valve.
Partially indestructible. Usually when something blows up, it warns you pretty well.
Cool.
Srinath.