Installing an aftermarket tach?

[gixxer6]

I’ve had several bouncy Kawi tachs, I’ve always replaced them and the new tach doesn’t bounce.  I’ve never tried the resistor on a stock tach. 

[sprocket]

In stock form I've added the resistor just for the tachometer what some of you don't know is most of the stock tachometers don't read correctly I brought my sled into a dyno session for other purposes when they asked me how accurate is your tachometer I said I think it's right, well to find out & see it for my eyes that my stock tachometer was off so we installed this gold resistor from wahl brothers that made a difference not only reading the tachometer more correctly but the bouncing went away.
If you have 5 magnets in your flywheel you have a 5 pole system