So I set aside time to install the Healtech Speedohealer with compatible cable accessory. Yeah, the guy above had an issue apparently. I will say, if you are not careful, it is easy to mess up if you cant follow a wiring diagram.
I set aside at least half a day, as the full install requires removing the upper fairing, headlight, which means the side fairings, and lower cowlings. So grab a beer and turn on some music!
The install require you to splice into the positive, negative, and speed sensor wire behind the instrument cluster. They give you the crimp splice bits necessary, making it all super easy.
Once all the wires are exposed, its as easy as cutting the sensor wire, about four inches back from the instrument cluster coupling, and crimping onto the positive and negative power lines in the same cluster.
Adjusted to -5%, and now i am exact!
Like anything faired, the most time is taking all the body work off, and back on. Although this is always a good moment to make sure everything is as expected, and getting to know your moto.
Really, not sure what happened with the other guy. I can only surmise end user error. Usually is. I have been there many times.