what sort of spark plug should i use in a 77 motobecane 50L? also, is this the 20 mph version or 30 mph?
also, my tank is FILTHY! like chunks of crud all in it... whats the best process for doing this? i know about the kerosene and whatnot.. but i heard someone mention something that "coats" the inside of the tank? whats this product called and where could i pick some up!? thanks!