Unless I'm mistaken, on a K100, each coil fires TWO plugs. Since at least one plug is firing on each coil, both coils are working.
I would pull the plug that is not firing and one of the plugs from the coil that is firing both. Check the gap and clean and dry them. Now put them in the opposite cylinders. If the non fire moves with the plug and both plugs fire with the coil that previously only fired one, you have a bad plug. Or they are so fouled that they won't fire (my guess).
If the same cylinder does not fire, MIGHT be a bad wire. Try swaping wires (move both ends of a wire that is working to the coil terminal and plug that is not working and take the wire that is not working to a position that is working). Does the problem move with the wire? Make sure the plugs are connected to the correct coil terminals.
Basically, does the problem move with the plug or the wire or does it stay with the coil/cylinder?
As far as the rookie comment, every expert/pro started as a rookie!
I would pull the plug that is not firing and one of the plugs from the coil that is firing both. Check the gap and clean and dry them. Now put them in the opposite cylinders. If the non fire moves with the plug and both plugs fire with the coil that previously only fired one, you have a bad plug. Or they are so fouled that they won't fire (my guess).
If the same cylinder does not fire, MIGHT be a bad wire. Try swaping wires (move both ends of a wire that is working to the coil terminal and plug that is not working and take the wire that is not working to a position that is working). Does the problem move with the wire? Make sure the plugs are connected to the correct coil terminals.
Basically, does the problem move with the plug or the wire or does it stay with the coil/cylinder?
As far as the rookie comment, every expert/pro started as a rookie!
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