Join Date: May 2017
Location: Portland, Oregon
5 years is a pretty good run for an OEM battery. Get it tested, my bet is it needs to get replaced. You *should* be able to bump start it, the battery needs most of it's cranking amperage to overcome the starter motor and crank resistance, which you are bypassing by running with the bike. But - the battery may not have enough internal energy to actually run the electrical systems like fuel pump and injectors.
1994 900 SS/CR
2017 939 SuperSport S
It's Italian. If I can get it to start, it'll win.