2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 421Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 421

3Start the engine and slowly increase RPMThe voltage should increase with the engine RPM to maximum of 15.5 DC voltsNOTE:
component and must be replaced as an assembly The CDI is located beneath the seat near the batteryNOTE: The CDI unit is not
serviceable componentIf the unit is defective, it must be replaced The CDI is rarely the cause for electrical problems; however,
if the CDI is suspected, substitute another CDI unit to verify the suspected one is defectiveNOTE: Prior to replacing the
CDI unit to assure the CDI unit is defective, it is advisable to perform CDI peak voltage test (see Ignition Coils in this
section) andor perform continuity test of the wiring harness from the CDI connector to the CDI unit Headlights The connectors
are the four 2-prong ones secured to the front bumper supports (two on each side) with cable tiesBULB VERIFICATION (Low and
High Beam) NOTE: Perform this test on each headlight bulbAlso, 12-volt external power supply wjumpers will be needed RegulatorRectifier