I listened to it also.
Sounds a bit like the noise the cam decompesor makes when the engine stops,which I hear at the end. Might be worth a look.

__________________
2011 xt660z.
Yoshimura cans ,kev mod,Dna 2, Stahlkoffer panniers,Hepco Becker box,Givi crash bars,Mita e07 tyres.