Just curious if something like this could work?
A recipe for disaster, for exactly the reasons set out by Sgt Bilco.
The only way it might work is if YOU owned the bike outright, then rented it out for (unknown) punters to use, using the rental charge to meet:
(A) Servicing costs
(B) Insurance. I am not sure how US Motor insurance works vis-a-vis loaned / rented vehicles or under what would perhaps amount to a 'business' type arrangement. No doubt it's very simple.
(C) A modest profit, sufficient to warrant the time and effort involved.
I have purposely excluded repair costs. Not because I think accidents will not happen but because I think they will. Let's pretend that your second customer causes USD 1000 of damage to the machine, not difficult in a small spill, badly denting a pannier, breaking the throttle twist grip and snapping the brake lever. Will you take a significant surety deposit first, before letting the customer ride out of the door? Will you bill them when they ride back into your garage, carrying the bits in a box, five hours before their flight home departs and when they have (sadly) "Spent all me money mate, I'm skint"?
What will you do with the damaged machine when your third customer arrives the next day, expecting 'a very nice' motorcycle, only to find it short of a pannier and no working throttle or brake lever? My, how you will both laugh, slapping each other on the back, revelling in the 'Biker, mate' bond.
One last itsy-titsy little consideration...... What happens when your first customer sues you for injuries they sustain whilst riding the bike they have loaned from you? Or when just a simple mechanical breakdown leaves them stuck for two days in Shitville County, awaiting repairs or recovery? "I'm well pissed off, mate. You promised me a great bike, very tidy. I've flown all the way out here and am now bleedin' well well fecked off". I worn you that the UKGSer most common solution is extreme violence and / or a depth of legal knowledge that would dwarf that of Baker & McKenzie.
There again, yours is a brilliant plan. Go for it, mate.