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Cylinder Block Identification

Posted: Mon Apr 27, 2020 10:34 am
Author: kawasaki_man
Can anyone help identify the model and or year that the following 903cc block comes from? Thanks for looking.
block_1.jpg

block_2.jpg

block_3.jpg

block_4.jpg

block_5.jpg

Re: Cylinder Block Identification

Posted: Mon Apr 27, 2020 12:53 pm
Author: z2.john
Z1A or Z1B (and some late first model Z1)

Re: Cylinder Block Identification

Posted: Mon Apr 27, 2020 2:39 pm
Author: kawasaki_man
z2.john wrote:Z1A or Z1B (and some late first model Z1)


Thanks for the info John. Which are the date markers to look out for on the block?

Re: Cylinder Block Identification

Posted: Mon Apr 27, 2020 2:55 pm
Author: z2.john
kawasaki_man wrote:Which are the date markers to look out for on the block?


I'm not aware of any date codes on the block but other owners may have some views on this.
If there is one I would imagine it is in the characters in the split circle.