No eBay APP ID and/or Cert ID defined in Kunena configurationHere is a Z1R serial number oddity.
ebay.com/itm/393589311522
It looks like a 1978, but it's listed as a 1980. The listing gives the frame number as KZT00D-016937, and the photos show an engine number close to that (016943, not sure about the 3). That serial number should be for a 1978.
www.zedder.com/Info/78%20KZ1000-D1%20Z1-R.htm
But the photos show the top half of the white frame tag, and the date shown is 11/79, which would be a 1980 D3. Unfortunately the bottom of the tag with the frame number is not shown.
It's doesn't seem to be listed using the engine number, but if the frame tag really says 016937 how can it also say 11/79?