1997 Ski-Doo Factory Shop Manual Volume One, Page 31Get this manual
Section 02 TROUBLESHOOTING Sub-Section 03 (FUEL AND OIL SYSTEMS)
SYMPTOM CONDITION TestInspection
ENGINE LACKS POWER OR STALLS AT HIGH RPMNORMAL USE1Check fuel tank vent hoseaKinked or clogged hoseRelocate or replace2Check fuel filteraClogged filterReplace3Check fuel linesaKinked or clogged linesRelocate or replace4Check fuel pump flowaDried diaphragmReplace5Check if carburetor(s) is (are) cleanaVarnishClean