Well, these don't have fuel pumps, but you may be able to adapt a later bypass cover in which takes a fuel pump. If the later 18hp bypass cover doesn't fit, then you could install a Mikuni fuel pump, like a lot of other members here have. I'm sure someone will chime in and give you the number for the best pump to use on it. I bought one for a motor that I worked on this summer. You may be able to do a search and pull up similar threads on this subject. I hope this helps.
