58mf65
New member
I keep burning up ignition coils. they get hot and crack and the fluid inside them comes out. This is a 1958 MF 65 gas engine. I notice on the coil it states to use with a primary resistance wire or external resistor. When I follow the wiring there is no resistor and the wiring looks like 14 gauge copper wire. after I replace it the tractor runs good for awhile but then starts back firing. eventually the tractor will die and I have to replace coil again. I get the coils from a massey rep and they said i need a resistor but they do not sell them. seems weird. is there a better coil i can just buy or where do i find these resistors.