2001 Ski-Doo Mini Z Factory Shop Manual, Page 45Get this manual
Section 03 TROUBLESHOOTING Subsection 03 (FUEL AND OIL SYSTEMS)
FUEL AND OIL SYSTEMS
SYMPTOM CONDITION TestInspection HIGH FUEL CONSUMPTION OR RICH MIXTURENORMAL USE1Check fuel tankaPerforated fuel tankReplace fuel tank2Check carburetor fittingsaLeaking fittingsReplace defective part3Check float height in carburetor(s)aFuel level is too high in float bowlAdjust according to specifications (refer to TECHNICAL DATA 10)SYMPTOM CONDITION TestInspection ENGINE LACKS POWER OR STALLS AT HIGH RPMNORMAL USE1Check fuel filter or straineraClogged filter or strainerClean2Check fuel linesaKinked or clogged linesRelocate or replace3Check if carburetor is cleanaVarnishClean4Verify check valve on top of fuel tankaImproperly installed or obstructedInstall with vented side toward atmosphere or replace