Would 2 55w lights be too much for the electrical system
..yes it would..
..can only go as high as MAYBE one dual element headlamp rated at @ 40 watts...
..35 watts is the oem spec, and much over that creates too much heat...amperage, all resulting in either melting of your reflector and / or wiring and rectifier...
..aftermarket wiring can be adapted, if you run a separate circuit directly from your battery, thru a fuse and switch...
..don't do anything to modify your scoot's oem wiring..the wire "sizes" are only able to handle a certain amount of current...
peace