your plug wire (being metal) is likely still good unless it is cracked and/or ... broken in a bend somewhere .
Usually the poor connection is at either tip connnection point and snipping 1/4 to 3/8 will restore some good non-oxydized surfaces for the coil's HV pin and you can remove, clean up and reinstall the boot's sping and prick pin shown in the picture above. Some dielectric grease at each end will make it last another half century
Personnaly I take the occasion to replace all plug wires with automotive solid strand WIRE sparkplug leads which come with a new boot but since your hobby is not oldies restoral may as well just buy 2x2 feet
These use to be about 40$ for 8 plug wires & now they are shown to be 170 ohms but actually measured 0 ohms in the BMX70000 . I just shortened the boots a bit for a perfect fit .
In any event 170 ohms would not stop 10-15 K volts from reaching the open air sparkplug gap. !
Usually the poor connection is at either tip connnection point and snipping 1/4 to 3/8 will restore some good non-oxydized surfaces for the coil's HV pin and you can remove, clean up and reinstall the boot's sping and prick pin shown in the picture above. Some dielectric grease at each end will make it last another half century
Personnaly I take the occasion to replace all plug wires with automotive solid strand WIRE sparkplug leads which come with a new boot but since your hobby is not oldies restoral may as well just buy 2x2 feet
These use to be about 40$ for 8 plug wires & now they are shown to be 170 ohms but actually measured 0 ohms in the BMX70000 . I just shortened the boots a bit for a perfect fit .
In any event 170 ohms would not stop 10-15 K volts from reaching the open air sparkplug gap. !
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