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Hey Folks,
Texas KZ has complied this ten page spread sheet that lays out years, model designations, frame and engine numbers and more.
Check out "KZ by the Numbers" here:
www.kzrider.com/filebase/category/64-general-chassis?start=10
Thank you TexasKZ!!!!
Bill

Thank you Texas KZ.

I agree, I have done something like it but not to the extent Texas did. Great info to have on hand!!!!!

Bravo ! Thank you Texas KZ .

Y’all are welcome. If you come across some reliable info for the missing Zephyr and copsicle numbers, let me know and I will add it.

Great job; I'm sure it took a LOT of time and effort to collect and post all that information!!! Thank you for pulling all that info together and putting it once place!

I did notice one thing that might be a bit off and that is the engine number for the 1977 KZ650-C1. The spreadsheet shows the engine number for the 1977 KZ650-C1 as starting with KZ650BE01785208, but my 1977 KZ650-C1 has KZ650BE024201 as its engine number. I bought the bike new in April 1977, so I know it's the original engine and engine number, but I don't know what the first 1977 KZ650-C1 engine number is. Ed

Thanks, Ed.
What does the back of your fsm say? After wading into this mess, I am less confident that Kawasaki kept really tight records. It is also complicated by the times big K used the same engine series in different bike models

Unfortunately, the back of the manual isn't much help. Below is what it shows. Ed

Sigh. I will try to find my source for that and see if I miss typed or read the wrong number.

wrote:

Great job; I'm sure it took a LOT of time and effort to collect and post all that information!!! Thank you for pulling all that info together and putting it once place!

I did notice one thing that might be a bit off and that is the engine number for the 1977 KZ650-C1. The spreadsheet shows the engine number for the 1977 KZ650-C1 as starting with KZ650BE01785208, but my 1977 KZ650-C1 has KZ650BE024201 as its engine number. I bought the bike new in April 1977, so I know it's the original engine and engine number, but I don't know what the first 1977 KZ650-C1 engine number is. Ed

Ed, that beginning number should be 017852. I am not sure why I put the 08 on the end. I shall blame it on COVID.........
I will try to get that correction posted this week. Thanks for pointing out my error.