2004 Skidoo ZX Series Service Manual, Page 93Get this manual
Section 03 TROUBLESHOOTING Subsection 04 (ELECTRICAL SYSTEM)
SYMPTOM
ON FAN-COOLED MODELS 20 FUSE ON BLACK WIRES IN FRONT OF VEHICLE IS BURNT OUT
CONDITION
TESTINSPECTION
NORMAL USE 1Check that big ground wire at battery is well connected to chassisaCorroded andor loose connection(s)Clean andor retighten
SYMPTOM