nope, unless your competitively racing and want to squeeze every last pony out of your motor, no real reason to use alky or race gas...most banshees are on pump gas
could you steer out of trouble with those tires though, all that weight on them with a stock frame bike, huge meats out the back, tiny contact patch up front, just push wouldnt they
what if the the seller doesnt know what a leakdown test is, so you explain that you wanna pull the pipes and carbs off and compress the motor at 6psi for 6mins, and if it doesnt pass its a time bomb and you`ll offer him sweet fuck all?
i know as seller what my reaction would be lol
if the rest of the bike is clean i guess decals can enhance, other wise it looks like stickers on a turd, i dont mind these, i like fade out around the edges
they dont look as good on darker coloured plastics though