I know that US regulations for cars have required ethanol-resistant materials for fuel for quite a long time, like several decades IIRC. Do you know if motorcyc

I know that US regulations for cars have required ethanol-resistant materials for fuel for quite a long time, like several decades IIRC. Do you know if motorcycles are exempt from those regulations? If not, it seems the issue should be the same as with (ie no more serious than) old cars.