2007 Arctic Cat DVX/Utility 250 ATV Service Manual, Page 96Get this manual
NOTE: Prior to replacing the CDI unit to assure the CDI unit is defective, it is advisable to perform CDI peak voltage test (see Ignition Coil in this section) andor perform continuity test of the wiring harness from the CDI connector to the CDI unit RegulatorRectifier
3Turn the ignition switch to the ON positionThe meter must read battery voltageNOTE: If battery voltage is not shown on the meter, troubleshoot the battery connections, ground connections, and starter cable connections