Those Z1R Unique Gauges

Zinnco gifted me with "fixin" a set of his Z1R gauges. Just sharing some of the special properties these ND gauges hold compared to ALL the others. The obvious difference in placement of Mileage and Trip registers, 180deg difference, renders this faceplate in it's own category, not to mention the hole in it for reset. Can't screw it-up because i don't know of an option for replacement. That "SPOON" removal of needle just jacks-up Your stuff!! I've mentioned it before but it's worth repeating!! Starting in around 1976 ND used a superglue type adhesive, much harder to remove needle off shaft. Spooning it warps the TWO brass E-clip locaters/shims you don't see but are there. So i just cut the needle off. Heat from cutting loosens-up the glue and saves the E-clips and SS shaft from getting snapped-off rendering the assembly useless. Had to have the faceplate bracket tack-welded on this one, was just flopping around. Anyhoot, here's what they look like..inside.          

@asphalt900
when you are servicing these gauges, do you mess with the accuracy of the gauge at all?
which now makes me wonder if the speedo drive gear is the same ratio on all these bikes. i feel like it can't be, from different wheel sizes. *thinking noises*

afaik. most KZs have a 26T speedo drive gear with 9T pinion. however. since it has 18" wheels. the Z1R could be 25T w 9T. not sure about the pinion. many Kawasakis are 9T.  the teeth count is listed w some models. 1000-E2 for example.