Speedo not working consistently ??

Speedo not working consistently ??

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Discussion

C7YEA

Original Poster:

19 posts

126 months

Wednesday 23rd April 2014
quotequote all
My speedo is not working consistently on a roadsport 175 - any ideas ?

I've tried adjusting the position of the speed sensor , several times, and can't get it to consistently work. It typically works to about 60mph, but then the needle starts to wave at me and then fails altogether.

Are the speedo sensors unreliable ? Any advice ?

thanks


DCL

1,215 posts

178 months

Wednesday 23rd April 2014
quotequote all
Check that the toothed ring is square on the drive shaft by rotating the wheel - tap it square if need be. Center the sensor in the middle of the ring and adjust it from a large gap until the LED starts to flash as you rotate the wheel. Test drive and only reduce the gap the minimum amount to get it reliable. Too small a gap can be cause problems too.

Edit: the wire in lead can break but the symptoms tend to be random rather than related to any particular speed.

Edited by DCL on Wednesday 23 April 14:09

C7YEA

Original Poster:

19 posts

126 months

Wednesday 23rd April 2014
quotequote all
Cheers DCL.

I'll have another go at adjusting as you suggest ...