bad coil?

So i finally got to the bottom of my timing issue and fixed my leaking carb. now i dont get a spark on my 2 and 3 cylinders.... I tested the power going to the coil, and its there, but still no spark... does this mean i need new coils? i cant really think of anything else it could be.. so strange, the bike started fine before i put it away for the winter..

The wiring is reversed for the 550’s 650‘s and 750‘s, that is the RIGHT coil primary will be two wires, RED and BLACK with the secondary(sparkplugs) going to #1 and #4.

The LEFT coils primary wiring would be again two wires, RED and GREEN, with the secondary(sparkplugs) going to #2 and #3. Your wiring colors may be different from what I've listed

These engines have what is known as a “Wasted Spark” that is, a sparkplug will fire during an exhaust stroke. It does no damage and many other motorcycle engines have this design.

Check the input voltage where the small wires go, you should have 12 volts at the red wire connection, measured between it and a frame ground or the battery negative teminal.

If no voltage, check the run/stop switch on the right handle bar switch pod.

If you still have contact points ignition, would recommend cleaning the contact assemblies. Also clean all connections between the contact points and the coils. This could cause it to misfire on two cylinders.

ive got the same problem on my kz 550 c3 ltd 1982 just wondered if you fixed it and how;)

I am not entirely sure what was wrong, but i purchased new coils and it works now.... so i think the coil bit the dust

thanks for the update,ive sent for another set of coils,