I just installed a Pro-One Tach Kit with 4" risers and the tach is not reading. I installed it to the right side coil as per instructed and it is still not reading. The red and blue wire is connected to the red/black coil wire and the green wire is connected to the orange coil wire and the black wire is grounded. I know that the ground is good since the back light is lit. When I start the bike, it reads either below 0 RPM's or up to 0, but never goes over....Any suggestions?