Also test the other half of the coil unscrew the spark plug cap and test from either terminal in the coil to the end of the wire. Should be around 10k ohms. The. Test resistance through the spark plug cap. Should be around 5k ohms.
If that checks good then locate the 3 pin connector on the passenger side going into the motor by the fan and check resistance between the white/black and white/red wires. That should be around 500 ohms, give or take.
If all that checks out, there’s not much more you can test, I’d suspect the ignitor. Here’s what I did on my G9. Skip to page 3. Worked out great and never had a spark problem again. I just couldn’t justify spending $350+ on an ignitor that cost more than I paid for the cart…
https://www.buggiesgonewild.com/showthread.php?t=141085