My 88 Johnson, 2.5 Hp quit recently. & I found that there was hardle any fuel coming from pump. I took the pump apart, [ Uh-oh} cleaned nasty gunk out of it & reassembled. Not sure I reassembled it right, though.Runs, now but leaks gas around pump gaskets. is there a good picture or diagram of it? Are new or rebuilt pumps available? I found a kit but since I am not sure how it is assembled, I am not tackling it. thanks