I am negotiating on this bike. It seems flawless on the cosmetic side. It has 77,000 km or 50,000 miles. I know very little about these bikes, other than they get great ride-ability reviews from owners. The price is $2700 but the catch is the bike will not start. Sat since 2016. Turns over when jump started on the dead battery. I wonder if this is just a bad fuel issue. I am trying to get service records, but current owner bought from an estate sale and never rode this bike. Are there any particular concerns I should be aware of? Thanks for any comments and help.