Ignition coil wire and firing order

When all the smoke has escaped from inside the wires...

Ignition coil wire and firing order

Postby Sykesweld » 18 May 2020, 00:27

Can someone tell me which wire go on which coil? I have a red and black on one side and a red and green on the other. I also need the plug to wire order. I have a us model 1990 550 and looked in the manual and have a idea but not sure.
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Re: Ignition coil wire and firing order

Postby hugojose » 18 May 2020, 08:56

Some electrical swapping can be done, changing direction of spark, but to keep thing orderly as stock, w/out getting too technical, keep it like this:


Front left to right is Black, Red, on left coil. Green, Red on right coil in that order, as if sitting on the bike.

Black fires 1 and 4, Green fires 2 and 3. The red is only the common 12 VDC to both coils.

Left coil then sparks 1 and 4 at the same time, It does not matter but for physical convenience, the left cable goes to 1, and right cable goes to 4.

Right coil sparks 2 and 3 at the same time. For physical convenience, the left cable goes to 2, and the right cable to 3
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Re: Ignition coil wire and firing order

Postby Sykesweld » 19 May 2020, 00:59

Thanks , I really do appreciate your reply. It makes sense. I’ll do it just like that and I’ll post a reply. Here is my 1990 zero 550 so far.
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Re: Ignition coil wire and firing order

Postby Old Kwack » 22 May 2020, 12:43

That's a great looking bike, do you have any more photos?
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