Adding Fuel Pump Relay and Cut-Off Switch
In addition to above, check the coil for a diode, using your multimeter. check low resistance across 85, 86 and then reverse the probes. If resistance is different, you have a diode, and need to pay 'tention to polarity.
You can put a toggle, security switch, and crash switch all in series with either sided of the 85/ 86 coil terminals
This shows one with a diode. A couple of members on here claim some of these relays have reversed diodes. It would be good to check this, as applying wrong polarity power will act as a short. In the diagram below, power + is applied to 86
In addition to above, check the coil for a diode, using your multimeter. check low resistance across 85, 86 and then reverse the probes. If resistance is different, you have a diode, and need to pay 'tention to polarity.
You can put a toggle, security switch, and crash switch all in series with either sided of the 85/ 86 coil terminals
This shows one with a diode. A couple of members on here claim some of these relays have reversed diodes. It would be good to check this, as applying wrong polarity power will act as a short. In the diagram below, power + is applied to 86
