Wiring a Ford 300 inline 6-cylinder engine with a toggle switch for ignition and a push-button for the starter involves bypassing the key ignition by controlling the ignition coil/module and triggering the fender-mounted starter solenoid.
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Required Components<br>
Heavy Duty Toggle Switch: <br>
(Rated for 20+ amps)<br>
Momentary Push Button Switch:<br>
12-14 Gauge Wire<br>
Inline Fuse Holder <br>
(Optional but recommended, 20-30A)
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Wiring Instructions<br>
1. Ignition Toggle Switch (Power to Coil/System)<br>
This switch turns the truck's electronics (ignition module, coil) on and off.<br>
Input: Run a 12-gauge wire from a 12V constant power source (like the positive battery side of the starter solenoid) to one terminal of your toggle switch. Place an inline fuse here.<br>
Output: Run a wire from the other side of the toggle switch to the positive terminal of the ignition coil.
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Note: If you have an electronic ignition module, this wire powers the "IGN" terminal on the module. If you have points, it powers the coil, usually through a resistor wire.
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2. Starter Push Button (Starter Trigger)<br>
This button triggers the fender-mounted starter solenoid.<br>
One Terminal: Connect a wire from the "S" (Start) spade terminal on the small fender-mounted starter solenoid.<br>
Other Terminal: Connect a wire to a 12V constant source (like the positive battery side of the solenoid).Action: When pushed, this connects 12V directly to the S terminal, engaging the starter.