GPZ1100 Cylinder Question

...I'm looking at a 1981 GPz1100 engine to pick up as a spare. It was over heated many years ago and scored the cylinders. Everything else looks solid, except for the cylinders and pistons. Plans for the motor was to go bigger, but that never happened. Now it's for sale.

...I do not want to go oversized, I would like it to remain stock. My question is, are there cylinders from other models that will work on the '81 GPz1100? I would naturally prefer the GPz cylinders, but will use any that will work if I cannot locate the GPz set up.

...Better yet, anyone have a set of GPz1100 cylinders to sell? :laugh:

...Any insight would be greatly appreciated. Thanks!

...Anyone have any idea? Anyone?

Photos of the cylinders and pistons?

Any 1100 cylinder is the same from 82 to 85.

3135 Go to the APE web page they have a list of what cylinders work with what year bikes. They also do really good head work and cylinder boring

missionkz wrote: Photos of the cylinders and pistons?

...Thanks. I'm all for photos, but I don't think that would do in this case.

etbike3135 wrote: Any 1100 cylinder is the same from 82 to 85.

...Cool! I was hoping that would be the case. Thanks!

dapro wrote: 3135 Go to the APE web page they have a list of what cylinders work with what year bikes. They also do really good head work and cylinder boring

...Really! I'll check it out. Thanks!

The GPz11's did suffer from high oil consumption, apparently Kawasaki had the idea to bore the barrels first then press into the block causing distortion. Mine was really powerful to ride but used to use a lot of oil, that's the only reason I'm going 1170.

Good info from Z power uk:

...NOT SINCE THE Z750 TWIN HAD WE HAD FAULTS. PAINTING FAULTS, GEARBOX FAULTS, ELECTRICAL FAULTS, AND WORST OF ALL, OIL CONSUMPTION FAULTS. THE Z1 DID NOT USE GREAT AMOUNTS OF OIL. EVERYBODY KNEW THIS. KAWASAKI KNEW THIS. THE WHOLE WORLD KNEW THIS. THE Z1 ENGINE WAS BULLET PROOF. RUSS COLLINS, VANCE AND HINES AND THE REST OF THE DRAG STRIP LADS PROVED THIS. SO WHAT WAS HAPPENING ?.

KAWASAKI DECIDED THAT 500 MILES TO A LITRE WAS ACCEPTABLE. 5000 MILES TO A LITRE WOULD HAVE BEEN ACCEPTABLE BUT NOT 500 MILES. A TRIP TO EUROPE WOULD COST YOU MORE IN OIL THAN IN PETROL.!! OH DEAR ! ALL WAS NOT WELL IN THE KAWASAKI CAMP.

www.z-power.co.uk/merchantmanager/view_information.php?pId=35

They also went to steel valve guides in the early KZ 1000's. Oil burning issues forced them to go back to brass.
Steve