Working on a 1999 scrambler, 500, no spark at the plug. Checked resistance at coil, (primary and secondary) both check to factory specs. CDI unit recently replaced. I checked the resistance, again ok. Measure voltage out of CDI to pos post on ciol, had a rannge of 40 to 80 volts, (digital volt meter). Not sure if this is to spec. Anyone know what it should be?