I just got a bike that is setup for he says e-85. It has 34mm mikuni or i think there 34's with powerjets built in. It has 18cc with heavy port job. He had just got the bike on a trade deal, and really didnt know much about the fuel situation. Kept saying just put it back on alky, because he had a hard time find e-85. My question is can i just interchange between alky and e-85? do i need to run the fuel out completely every time out of the carbs and tank? My other bike is on race gas so this is completely new to me. what about to switch back, do i just take the powerjet out, rejet, and put 19 or 20cc domes in to run race gas? sorry for all the questions,