Hi Peter, just looked at GoMog pages which has a one paragraph on the subject suggesting getting the speedo tested, or replaced or changing a little capacitor behind the speedo. Not overly helpful I am afraid.

I have a tacho issue that I am awaiting a response from Caerbont near Swansea
regarding a fix or a replacement instrument.


Ian
2011 Plus 4
Wild Mogs Reims 2019, Goodwood 2018, Isle of Man 2017, Carried on to Caramulo" 2016