My 2020 KTM 690 enduro came without a tach. Adding a Trail Tech Tach/Hour meter sounded pretty darn simple; just wrap the wires around the spark plug wire or coil boot and away you go. Well, I bought one, and just cannot get the rpm to read anything. I'm still experimenting, but wonder if anyone has a suggestion. This bike has two plugs, and I'm currently using the outboard plug. Does that one not function all the time? I'm going to try the other plug, and try the unit on another motor that has plug wires that are easier to get to.