Hi All,

My 2008 XT660R has been laid up for a year as it wouldn't start and I kinda lost interest in the poor thing for a bit. This week I have the bug again and sorted out the non starting issue (corroded terminals for RH switch gear under the tank).

I took it round the block and it seems the speedo over reads massively (3rd gear approx 30mph it thinks I am doing 108!), on tickover in 1st on the stand it reads 21mph. I have checked the pulses from the speed sensor and it appears to go between 0.4 and 4.8V about 6-8 times for 1 turn of the rear wheel, I suspect the speed sensor is faulty and I wondered if anyone else has any views on this?

Up until 2013 when it went wrong I had done 32000 miles in all weathers and have pulled apart every connector and cleaned the terminals as some were quite corroded. The speedo was working ok up to the point the bike went wrong.