2004 Skidoo ZX Series Service Manual, Page 79Get this manual
Section 03 TROUBLESHOOTING Subsection 02 (FUEL AND OIL SYSTEMS)
SYMPTOM
ENGINE LACKS POWER OR STALLS AT HIGH RPM
CONDITION
TESTINSPECTION
NORMAL USE 1Check fuel tank vent hoseaKinked or clogged hoseRelocate or replace2Check fuel filteraClogged filterReplace3Check fuel linesaKinked or clogged linesRelocate or replace4Check fuel pump flowaCheck impulse hoseReplacebDried diaphragmReplace5Check if carburetor(s) is (are) cleanaVarnishClean
SYMPTOM