Engine rebuilt, now speedometer not registering

Garrett

Adventurist
Hi guys,
I'm sure I'll find some info on some WR250R forums, but I just had my motor rebuilt. Upon installation, everything works great, awesome power, etc...BUT the speedometer is not registering. I ran the head unit diagnostic and it's not getting any input from the speed sensor. To me, that means the sensor could be bad, but the interwebs says it may actually be the head unit.

Has anyone ever experienced a digital speedometer failure? 2008 wr250r (yamaha)
 
So...odd question, does your taillight work? On multiple years of the WR the speed sensor wire and taillight wire are the same connector and very close to one another. Connectors might have gotten swapped during the reinstall...
 
Yes, the taillight works. I noticed that and I followed the wires and they are plugged in to the right sockets.
 
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