1999 Ski-Doo Factory Shop Manual Volume Two, Page 83Get this manual
Section 03 TROUBLESHOOTING Subsection 05 (ELECTRICAL SYSTEM)
SYMPTOM CONDITION TestInspection
SPARK PLUG TIP(S) IS (ARE) LIGHT GREYNORMAL USE1Refer to ENGINE SLOWS DOWN OR STOPS AT HIGH RPM and check items listed2Check spark plug heat rangeaSpark plug heat range is too highReplace by Bombardier's recommended spark plug (refer to TECHNICAL DATA 10)3Check if air intake silencer leaksaAir surplus coming from opening(s) located between halvesSeal4Check carburetor adapter collarsaLoose collar(s)Tighten5Check carburetor adapter(s)aCracked or deformed adapter(s)Replace