Sorry if this is covered, but I have been trying to find a solution to getting my first bike firing. If it’s been covered, please point me to the right direction. Anyway, my friend found a couple of old bikes in a barn and got me the 1982 xs400 with 18,181 kms on it. It had been sitting for over 10 years, low compression on the one cylinder, clogged carbs, and a jammed rear brake. We got the cylinders honed, and new rings in it, now it has a really weird sparking issue. One side sparks almost constantly, the other side seems to spark only when I let go of the starter button. Sometimes it’ll spark while it turns over, but rarely. Here’s the things I’ve done……switched the coils (does the same with each one) got a new rectifier (didn’t change) gone through the whole bike for ground fault (found a couple not connected, didn’t change) checked the points (one was a little dirty, didn’t change) checked the starter (cleaned it up and checked the polarity, all the wires are fine and didn’t change) the only thing that I haven’t checked was to see if the timing was out, but I assumed it was still fine from when I put it back together. I’m at the end of my rope. Has anyone had a problem like this and solved it?!?!?