Two cylinders, one that has been rebored to about 87mm (standard bore is 85mm) and one rusty one which is ??mm. Two cylinder heads, one with a broken inlet valve (you can see where the valve marked the combustion chamber in the top photo) and the other with a slightly bent inlet valve. So I suppose you could assume that the engine was disassembled because either a cam chain snapped or the engine was assembled previously with incorrect cam timing and caused the piston to bend the inlet valve. There appears to be no damage in the crankcases where the cam chain runs so I think the cause was the latter. Either way I will still be investing in a new cam chain.
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