Ignition coils

Denverdean1

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Hello everyone, first time here. I purchased a 1979 xs400F a few days ago and I'm trying to get it running. The previous owner said the ignition coils burnt while he was tuning the carbs. He put new ones on but didn't connect them. It seems they might not be the correct ones as they only have one wire coming out of them. Just wanted to make sure before I go buy new ones. I've added a picture of what they look like. thank you
s-l400.jpg
 
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He bought internal grounded ones instead of external. Won't work unless you have the wire coming out to attach to the metal bracket there, it severs and insulates to splice more wire onto it to go where it needs to. If the ground cannot be seen then you can't use them.
 
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The right prong has the wire attached to it to go to the orange and grey wires. The left prong is attached to the mounting bracket of the coil so I assume that is the ground
 
Red wire to coil bracket is a direct short and fire and melting wire. Fuse blows. The black/blue wire likely useless and whacky Chinese part that will never work. Correct is red/white goes into coil plus sides and orange or gray comes out negative side to breaker points or electronic. Nothing in the last sentence can touch the coil brackets.

You will have to sort out the coil wire primary and secondary, assuming you want to short the bike out you will not be able to do that properly.

Best to get correct coils if those not marked with + and -, you can have more than one error there. Looks like the primary and secondary grounds are combined and wrong, they have to be separate for coils to work on these.

The coils may be for 2 stroke with magneto. Not right for this application. The primary and secondary grounds appear to be common and they cannot be to work on this bike.
 
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