Duct tape to secure the parts that shouldn't move, WD-40 to free up the parts that should move. Cash for the places that still take it and an ATM card for the places that don't. A sparkplug wrench and, if it is a very long trip, the wrenches needed to adjust the chain. A bit of wire, a few alligator clips and some electrical tape.
Oh, and a dragon slayer sword for just in case.