year model by engine number?

I've got a '78 KZ1000 B2 i just purchased, and somewhere along the long life it lived the engine was swapped out with a 903cc Z1. Is there anyway of telling which year the engine is from the engine numbers? Engine numbers are Z1E112452, thanks for any help.

76-77

wireman wrote:

76-77

Thanks for the quick reply, so either year is identical in assembly as far as carbs and other parts? Im needing to buy some individual air filters for the carbs, the factory airbox is missing and theres no telling how long its been running without any kind of breather at all.

post a picture so we can see which carbs you have on there.

There Mikuni's but i can take a pic and have it up after a while. I'll post it up in the carb section, maybe you can help me spot any parts or lines i may be missing.

post multiple pictures of whole bike from differant angles ,they dont let us out of here very much so we like pictures!

How do you tell year by engine number?

wireman wrote:

post multiple pictures of whole bike from differant angles ,they dont let us out of here very much so we like pictures!

LOL, i just took some but its dark and i had to take them in the shop so i was only able to get one good pic of the whole bike. I'll have some more once i get it cleaned up and its daylight.

pumps wrote:

How do you tell year by engine number?

they only made so many between 72 and early 77,thats a pretty high serial number.

pumps wrote:

How do you tell year by engine number?

You can find frame and engine numbers at www.zedder.com .

Go to the site, and click on Bike Info. Then you have to search each year/model.

The engine numbers for the 1976 KZ900-A4 and the 1977 KZ900-A5 go from Z1E086001 to Z1E138846.

Frame numbers don't match engine numbers, and I think that Kaw made spare engines that may have been installed in bikes over the years. So the date of the frame manufacture may be different than the engine.