Pipe May 7, 2018 10:56:44 GMT 1 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by 125lc1dt on May 7, 2018 10:56:44 GMT 1 Can anyone confirm the correct internal diameter fuel pipe to use on the 125 tank / carb line. Seems both 5 & 6 mm work ?