Parts identification

Hi all you proud owners of a Kawasaki Z. I am a owner of a Z1R, serial number ending with 140, so it's definetly a 78 model. What's confusing me is that it is equipped with a D3 fuel tank with center mounted fuel cap. I have searched the web for pictures of -78 models Z1R, all of them has fuel tank with gas cap mounted on the right side of the fuel tank. Does anybody know if it is a way to find out if this bike is delivered with the large fuel tank, or if it has been replaced ? Regards Rune

On top first gen. stock tanks .
Left bottom first gen big tank (small series handmade).
Right bottom last gen. D3 tank.



kzrider.com/forum/24-wanted/612461-z1r-d3-fuel-cap?start=12

Thank you, Scirocco! I have the D3 tank, so the original tank has been replaced for some reason. Regards Rune