When I go to Croom or Ocala:
Tie-rod ends and jam nuts, cotter pins, metric nut/bolt assortment, fuses, wire ties, electrical tape, butt connectors, extra spark plug, tire plugs and a small air comp, extra oil, carb cleaner, brake cleaner, WD-40, master link (chain-drive). I use Plano type tackle boxes for the small stuff.
If I can't get the bike running with that I probably busted my butt and won't be riding anyway.