If there is no external issue (grounding to the ignition circuit), more igniters fail than the actual ignition coils by far. There is a test floating around here somewhere- provided you have an Ohmeter. You aren't looking for voltage. Or the Service manuals are available online for kawasaki's.

In the Deere manual it basically says the following: The coil test is to measure resistance between the wiring lead terminal and coil terminal should be between .48 and .72 OHMS The measure between the spark plug cap terminal and coil terminal. 10.9- 16.3 OHMS. The manual says to replace the coil if not in these specs. From there, this manual says to be certain that the terminals are clean and components are grounded and it still won't start to replace the igniter.
Another igniter test I have says to check between the case and the terminal of the igniter. + on the case and neg on the terminal should show .2- .7 and reversed should be 1-5 OHMs Me, I just put on a known good one I have in my tool box...