You are jumping double the gap under compression when dual plugging. Spyke 449010 dual fire coil with 3 ohms resistance for 80 02 big twin harley models except fuel injected 7144.

Rigid Evo Sportster Sport 1200s 98 03 Ignition Replacement
Spyke ignition wiring diagram. So todays wiring is pretty good. Wiring diagram xlh 1970 1971 custom universal basic wiring diagram. See coil wiring diagrams for dual fire or 2 plugcylinder operation. View as grid list. Spyke doesnt support ss rev gear installations. Ignition module or coil.
I found it hard to believe but it was true. Insert ignition and lock into place using the. Pull ignition wire through wire hole rock ignition into cone. Spyke 420011 fxr plug wires. See wiring diagram do not hook the black. Use only resistor plug wires resistor plugs to 12 vdc from ignition or kill switch usually white with black stripe white 12 vdc wiring diagram red tach trigger tach factory tach wire normally pink voes switch green voes ground if not used voes should be adjusted to 5 5 12 lbs rigger white 12 vdc timing line.
Within 6 months after purchase and if found by spyke inc. Rocker arm and pushrod assembly. Spyke 449010 dual fire coil with 3 ohms resistance for 80 02 big twin harley models except fuel injected. Wiring diagram coil wiring for distributor mounted single fire ignition 2 plugscylinder 3 ohm dual fire coils important note. Df coils can not be wired for 2 plug per cylinder dual fire. Spyke 420010 universal plug wires.
To be defective in material or workmanship. Seems to me it was a 1965 or 66 model. Wiring diagram xlch. Engine so the wire exits in the location you wish the ignition wiring harness to exit and the rotor pins are located as shown in diagram. Kickstarter assembly 1966 1969. Here are some wiring diagrams so you can see what i mean.
Coil wiring 12 vdc from kill switch usually whiteblack plug wires may go to either cylinder use only resistor plug wires resistor plugs super comp dual fire igntions coil wiring black coil trigger wire white to 12 vdc from ignition switch white 12 vdc to module sf coils can not be wired for 2 plugcylinder single fire. All the wires were one color white. Transmission late 1984 1985 wiring diagram flhs 1980 1981 prestolite starter motor. Limited warranty spyke inc. In the example below the wire will exit to the rear inside of the engine. I had to cut into the wiring bundle and separate each wire and test it till i finally found the fault.
Warrants to the original retail purchaser of a spyke ignition that it will free of charge repair or replace at its own option the product if returned to spyke inc. Ignition system late 1978 1979 starter solenoid 1970 1980 rocker arm and pushrod assembly. Warrants to the original retail purchaser of a spyke ignition that it will free of charge repair or replace at its own option. If both plug on same cylinder are gapped at 0040 your jumping 0080 under pressure.