Some do, if there's enough battery power to prime the fuel lines. Others go totally haywire. Very hit and miss. It's not just the pump pressure and FI either, some ignitions just won't work beneath a certain V.
Sweet looking bike by the way Hugo. Bet that's nippy in town.
Looks good, spoked wheels are nice. Unless the fuel injection won't allow it you should be able to bump that up an incline!