I noticed this 73 Z1 on Ebay just now. I'm not interested in buying it but am just curious about the VIN. Check out pic 5. What the hell's up with that? I can't even figure out what that's a picture of. Supposedly it's a picture of the VIN on the headstock. Sure looks to me like this has been ground out and restamped so motor and frame numbers fall in range. I had a scammer pass a restamped frame off on me once and hate to see some unsuspecting soul drop 28,000 on a bike that's not what it's claimed to be. Other than that it seems like a nice bike, but with a restamped frame, certainly isn't worth 28 thousand.
The early z1 frame vin was set on top of a dipped area of the headstock that made it more obvious if the vin had been altered, like my 75 below. Even with powder coat you can see the area, ask for a better photo, if he objects then it’s probably a ringer.
There are too many other things not correct on that bike to bother with the serial number, but for what it's worth I think it's legit based on what I know and can see in the photo.
No takers at 26k, which isn't surprising. Like I mentioned, I wasn't interested in buying but was trying to make sense out of the pic of the VIN. For educational purposes Hardrock... and anyone else...what all do you see wrong with this bike? I've been through the pics and all I can see is the aftermarket gages and the stamping on the rims. Also, the bike appears to be put together almost entirely from aftermarket parts, which isn't necessarily a terrible thing. But by no means would call it a museum piece.