After reading my own post, it sounded confusing, so I will better explain it.
Wire a main switch for power to a toggle on the panel for the primer. This prevents accidental use when not desired. Then wire in 2 separate momentary on switches, one that is the same as the starter activation switch, and one that is separate, and in another location on the panel, maybe near other devices for emergency use together. This second switch can spray the injector by itself without engine spinning, for additional prime if needed. The toggle prevents use during hot starts if not needed, and if needed during "normal" starts, will be automatic with starter activation, with the toggle in the "on" position. Hope this clears it up... Colin Rainey brokerpilot9...@earthlink.net EarthLink Revolves Around You.