Buying a BMW 1200GS

[aka.Goliath]

So I'm looking at buying a BMW 1200GS second hand and want to know what problems I should be looking out for. Not only with this bike but in general, what mechanical issues should one look out for so you do not regret your purchase and the very expensive bill for your first service?

 

[White Rhino]

 

[Triple Trompie]

 

[AntVan]

 

[M.filer]