Koso spedo

[Lesley]

I tried putting a koso spedo in my 2019 road kind and it wouldn’t work, light up that’s it. Couldn’t start nothing. Put stock spedo back in bike starts but check engine light is on. Anyone have any ideas?

 

[Breeze3at]

I've read good reports about Koso speedo's. Harley's canbus electrical systems are very particular about changes made to the system. I suggest going back over the printed installation brochure very carefully making sure nothing was missed.

 

[Roadking-1960]

If check engine light is on , there should be a code , read this first. But that could be ,because you unhooked the original speedo.
So if this is erased , it shouldn't come back , if everything is stock again!. Good luck.