Swingarm date code on kz1000?

I've seen references to date codes stamped into the swingarm. I was looking at the arm from one of my 1978 Z1Rs and I can't find any stamps anywhere. Did they still stamp codes on the '78 kz1000? If so, where do I look?

I'd like to have it painted, and want to preserve any factory marks that might be present.

I don't know if they stopped but if it's stamped it would be on the top near the front right corner.

Not sure if this will be of any help but here is a page from a Z2 site about date codes.
www.freewebs.com/750rs/datecodes.htm

gd4now wrote: Not sure if this will be of any help but here is a page from a Z2 site about date codes.
www.freewebs.com/750rs/datecodes.htm

That's an old John Brookes site. He no longer maintains it. All of that info and more is in his latest book, available through Z Power.

hardrockminer wrote: I don't know if they stopped but if it's stamped it would be on the top near the front right corner.

Yes. It's there. I looked right at it and didn't see it several times. But scrubbing a bit more brought it out. I had the impression it was on the bottom side, so initially I was looking in the wrong place. Thanks for the tip.



I'm guessing that indicates November, 1977. My frame head tag is dated 12/77, so that aligns nicely.

Correct, that is stamped in their Gregorian formate Y MM. So that is 1977 November.