KZ900 engine harmonics- constantly changing * ? *

Start it up, and it sounds like a V-twin Harley... other times, it sounds like the bikes these are, a nicely tuned 4 cylinder with that certain sounds- hard to explain- but you get the the point. Question is, why? I have a bad coil Cyl. 2&3....could it be that they are periodically firing, and when they aren't, it's only running on Cyl. 1&4, hence the V-twin sounding? More of a curious question here than a problem. Hopefully have some new coils coming next week :thumbsup:

Start bike. Take a spray bottle filled with water and once the bike warms, spray on each head pipe. If water rolls off, the cylinder isn't firing. If it vaporizes, it is firing. If you have 2 & 3 not firing, problem MIGHT be a bad coil. Since I have no idea what bike or what ignition, can't say much more than that. Put your bike year/model and your location in your signature by editing your profile.

I would guess a bad coil or maybe points.