Thanks!
I'm trying to pre-emptively figure out what (reasonable) roadside repairs / adjustments I might need to make. I'll be mainly doing Sunday afternoon rides in the city.
One tool I already have handy: A small slot / flat screwdriver.
My XS500's idle screw seems to need tweaking between warm enough to run without choke and 5+ minutes later when really warm. So I have a small flat blade screwdriver on a break-a-way keychain ring that I can quickly grab to make an adjustment. (Typical pattern is: It will barely idle/stall in the driveway, so tweak the screw up a turn or two, then after driving for 5+ minutes, idle climbs to 3K+, so I pull over, pop the screwdriver off the keychain and dial it back down and carry on)