1982 XL500R. One day out of the blue lost spark. Rebuilt motor too its getting together replaced coil with used still no spark. Replaced with new still no spark. Pickup tests OK. Stator however has 84 ohms from the single plug black/red to ground. Book is a bit crappy on this test as it shows the wire in the plug, the red or pinkish has nothing to ground. Any help? Think I need a stator now? Also don't know if a successful test to the CDI can be performed??