Koehler 4.5CKM21-RV, NEED HELP PLEASE

I have a a Koehler 4.5ckm21-RV. It's in my 85 Holiday Rambler. When I bought the Motorhome, the coil had a hot wire going from the battery side of solenoid to a kill switch, to the coil, and fuel pump. This is not right as I cannot shut the fuel pump and coil off without going outside and hitting the added kill switch. The manual says it should be powered by relay 2 however, my generator is different in this term because it shows separate relays and points it out. however, my generated has one control board with relays built in that that are not changeable. ( they would have to be unsoldered and soldered back together. There was a 5 amp fuse blown behind the side cover, I replaced that and I'm sure that's why the last owner added the kill switch, because they didn't find the fuse. What my problem is, is I think they did away with the wire going to the coil and the fuel pump. Can anyone tell me from the coil, where is it powered from. Where does the wire go from the coil to power it when I hit the start switch? I need help as I cannot figure this out! Thanks for your help.