SOHC.co.uk Forums > CB500/550

Noisy Speedometer

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florence:
My speedometer has developed an annoying squeal as soon as it reaches 30MPH and remains noisy at any speed above.  It is incredibly noisy, enough to make pedestrians look on aghast.  I wondered what on earth was happening the first time until I pinned it down to the offending gauge.

My question is, has anyone else experienced this fault?  I tried squirting some oil inside but it has not helped.  I'm not sure I can face the effort of taking it apart unless I can be certain of success

SteveD CB500K0:
Reminds me of when I worked in the US in the 80s. Rental cars had speedos that buzzed if you went over 55.

So I’d say it’s your speed limit warning Steve


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Sesman:
Try dropping kent400 a line. He must have seen all the problems and fixes?

kent400:
I suspect the speedo is one of the Seiki large type, no point in spraying WD or whatever in the bulb apertures the noise is coming from the drive spindle housing and you could try some light oil in the housing. Ideally the speedo needs to come apart, the mechanism ultrasonically cleaned and lubricated at both ends 

beardylondon:
I had the same issue and Peter Horton (Kent400 on here) stripped it down and rebuilt it for a very good price, highly recommended.

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