100LL has more lead in it than most automotive gas did when leaded fuel was available at the pump. Avgas is formulated for engines that run in very different conditions than motorcycles. Constant high load low rpm large throttle opening. What would be considered lugging for a road vehicle engine.
It will kill the catalytic converter and the O2 sensor. It smells really good both in the raw state and as exhaust, though.
is what you think you want.