TOPIC:

Good day fellow KZ'ers!

I hope your doing well.

Been registered with this forum for a while, but never posted as I had another project to finish.

I got a 79/80 KZ750 with a (according to Kawasaki SA) 82 motor.

Bought it from a friend some time ago, the last time it ran only 2 cylinders fired. I used the service manual to test the ignition coils, but it aint working too good.

The coil for cylinders 1 and 4 tests 32.8 on 200k ohm (plug caps) but coil for cylinders 2 and 3 gets nothing.

I remember we tested for spark, there was spark but very weak...

Any ideas?

Thanks!

have you tried switching power wires between the 2 coils to see if other coil fires?

-[DawG]- wrote: ... 79/80 KZ750 with a (according to Kawasaki SA) 82 motor...last time it ran only 2 cylinders fired. I used the service manual to test the ignition coils, but it aint working too good...The coil for cylinders 1 and 4 tests 32.8 on 200k ohm (plug caps) but coil for cylinders 2 and 3 gets nothing....tested for spark, there was spark but very weak....

Might be a problem with one or both caps (could remove and ohm-test just the caps).

Or might be a problem in connection between cap and wire (could remove caps and ohm-test between exposed ends of wires).

If wire is long enough, could remove cap, trim back wire, and reattach the cap.

Good Fortune!

Electronic ignition or points? If electronic ignition,look here for pick up testing:

Ohm Checking Pickup(Pulsing) Coils

The pickup 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.

Hey Guys,

Soooooo sorry for the VERY VERY late reply, just want to thank you all for your input. I managed to test the ignition coils some months ago, and found one of them being dead.

@MFolks
Thanks, might be a solution to my current problem

-[DawG]- wrote: I remember we tested for spark, there was spark but very weak...

Any ideas?

Thanks!

Get new coils. They don't age well and cause infinite misery. You can't bench test a coil for the most common failure mode which is breakdown of the high voltage insulation.