Mag 18 swap in a 782

[dhuntington]

I am sure this has been addressed before but I need to know what wiring mods need to be done to put a mag 18 into a 782. I keep reading that it is a simple mod but can find no reference on what need done any help would be greatly appreciated

[Mr.Goffena]

I know you need to add a relay or change to a different key switch. The ignition on a KT17 is powered and a magnum the ignition is grounded to kill it i believe. I could be wrong.

[dale c.]

I've done 2 now everything hooks up just fine but the wiring does need changed all I did was added a kill switch [push button] to ground the magneto to shut it off .the wiring connector at the engine I took the wire that went to the kt17 coil out of the connector [tractor side] and ran a new wire to the switch that I added in the hole to the right of the key switch and another wire from the switch to ground.you could also use a toggle switch...I just did 1 last year for my brother and I thought I could use a switch from an 1806 but I found that the same wire that powered the coil also powers the pto switch...dale c.

[dhuntington]

Thank you for the help hopefully I can get this tractor going by the weekend.

[J-Mech]

Using a relay is the simplest. Install the old ign wire to power the relay on terminal #85. Use terminal #30 on the relay to run to the mag wire, and ground the #87a and #86 terminals. You can use Standard Ignition relay part #RY115 or Borg Warner relay part #R3074. They are about $15 and available at most anywhere auto parts are sold.

[dhuntington]

Again thank you for the help