1990 zzr600d oil leak [Archive] - Kawasaki Motorcycle Forums

1990 zzr600d oil leak

Dakota Bowshier
08-01-2018, 08:05 AM
I have a 1990 zzr600d. There is a slight oil leak, nothing major, maybe about a quart every 2 weeks. My problem is, I don't want it to get on the back tire while I'm riding or the exhaust and catch fire. It's coming from the bottom of the clutch case where I believe that the clutch shaft? Correct me if I'm wrong please, enters it. It's happened for about 4 months. If I tilt it at enough of an angle it stops and it only happens when it's hot. A few friends said its supposed to have an o-ring there but I haven't been able to find a diagram indicating so or even a replacement o-ring listed. I've taken it all apart and replaced the gasket and checked for cracks. All seems good.

08-01-2018, 01:14 PM
I'm not familiar with your motorcycle.
Looking at the diagrams at partzilla for the 1990 ZX600-D1.
Assuming the leak is at the clutch release actuator #13102-1105 (RELEASE-COMP-CLUTCH).
The clutch cover #14032-1286 has two needle bearings & an oil seal.
Maybe the oil seal is old & hard and no longer seals.


08-02-2018, 05:19 AM
Are you sure is on the right side of the engine, and not the left one?

08-02-2018, 03:14 PM
I was assuming the right side clutch cover, but as Hugojose has implied, it would be good to know for certain exactly where the leak is. A pic would be good or use the diagrams at Partzilla to indicate the location of the leak.


07-27-2019, 07:09 PM
A “Quart every two weeks” sounds serious to me! I know US and UK quarts are different but that seems a huge leak to me. I hope it’s not too big a job to fix it regards, John