Not getting any spark on half my cylinders

I have an 81 KZ750 Ltd that is not getting spark on cylinders 1 and 4. I tested the plugs and coils and they are all good. I only have a Haynes manual to work with and it hasn't been too helpful. It does not show where any of the components are on the bike and only provides a wiring diagram that doesnt show where anything is either. I know the bike uses two circuits for four cylinders and cylinders 1 and 4 are on the same circuit so my problem is somewhere in that circuit. I just cant seem to follow any of the wires or find any components. Can anyone help or give any advice? Maybe someone has a picture or a diagram that would be helpful? Also if there is anyone in Southern NH or Northern Mass who knows somewhere I can take the bike to get fixed I would appreciate it. I usually like to do my own work but at this point if I can get some one to fix the ignition circuit I wouldn't mind having it proffessionaly done. Thanks for your help and advice.

reverse the power to the coils ie unplug coils reverse the wires ie left to right right to left see if your problem switches to the 2/3 cylinders. if it does could be pick up on the ignition plate

Ohm Checking Pickup(Pulsing) Coils

The pickup(Pulsing) coils on the Kawasaki’s with the factory supplied electronic ignition can sometimes fail or become intermittent due to heat and vibration.

1.Trace back from where the pick up coils are mounted,(under a right side CD sized cover) locate and disconnect a small 4 pin connector. Using a multi-meter set on OHMS and range of 2K, check between the BLUE and BLACK wires(#1 and #4 sparkplug wires) for between 360- 540 OHMS.

2.For #2 and #3 sparkplugs the wire colors will be YELLOW and RED, again 360-540 OHMS. The 550’s,650’s & 750’s may be backwards to the Z1’s,Kz900’s,Kz1000’s & Kz1100’s.

3.If the pickup coils are suspect of failing due to heat, they can be stressed using a hair dryer without the need of the engine running.

4.A replacement set of pickup coils might be obtained from a dealer who serviced the police Kawasaki’s.

5. If replacement pickup coils are not available, your next choice would be to order a Dyna “S” electronic ignition system from www.z1enterprises.com It replaces the IC igniter with a smaller module located where the mechanical ignition advancer was mounted.

6. Checking with Kawasaki.com website has determined that the Pick up(pulsing) coils are available . The pulsing coil # is 59026-1133 and replaces the older # 1002, 1012 which were used from the MKII motors until the 2005 P24.

7.Check the small 4 pin connector that the pickup coils connect to for corrosion/loose pins too.

kz.bike-night.com .
mbsween kz750l3 zkz750l3z zmbsweenz

Thanks for all the advice guys. Where are the pick up coils located though? I haven't been able to find a diagram labeling them yet. And thanks for the links, I will be sure to check them out.

VinnWith2Ns wrote: ... Where are the pick up coils located though?....

Under the "points cover," and may look similar to one of these:




Good Fortune!

Well the good news is I managed to get spark back on all four cylinders. Recharged the battery and got the bike running for a few seconds too! The bad news is the bike still couldnt idle and now it just plain wont start! I have some more troubleshooting to do, but I will be sure to ask if I need any advice, thanks for all your help!