Hello Geoff,
Im no guru at all but a bike standing in a garage for a whole year sounds very bad, i bet you he never started it up or took it for a short spin. So all the oil every single last drop has drained down leaving everything above bone dry for 12 months. Wild guess, an/all piston rings has "collapsed" if i could call it that, wild guess i say again.Constant lubrication is essential like we all know,with bikes or birds. Good luck
Stef
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