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Interchangeability of Speedos and Tachometers within CB750 models

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Pedro26:
Thanks for the suggestions, but does anybody know if the K series gauges are interchangeable with those from the F series? I understand that there were cosmetic changes between the different K models.

Mine look like the later gauges in Sean pics, two ‘acorn/dome headed nuts on the back. Well from the back at least.

So maybe anything post K2 will fit.

I could get the replicas, fit them,  and have a word with the repair guy on the forum about having the originals sorted. Removing the original gauges, now knowing what to look for, I can see both have been opened up before, leaving the telltale signs on the crimping ring backs.

kent400:
The replica gauges are best avoided. They are basically a copy of a Nippon Seiki mechanism and none of the parts are interchangeable with an ND gauges. I've been 'gifted' several of them where the owner has subsequently found genuine ND gauges and found the replica ones wildly inaccurate. Gifted on the idea that I could use them for parts but there's no chance of that!

One request from an owner of replica gauges to fit faces which have ND one them but the screw holes on ND faces don't line up with the securing screws on the replica ones.

In view of the fact it's possible to obtain parts for F2 gauges restoration is a better plan. Early ones with the angle drive mechanism (KO & K1) often suffer wear in the plastic gear within the angle drive mechanism and the steel gears that drive the mileage counters.

A warped dial face can sometimes be flattened by warming with a hot air gun and once warmed pushed on a flat surface Only done that once for a very well known Honda parts supplier on a machine he sold.       

Pedro26:
Current speedo

Pedro26:
Current tachometer

Pedro26:
Both function well. Well that is back in 2001, the last time the bike was rode.

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