1996 Ski-Doo Shop Manual, Volume 1, Page 38Get this manual
Se ion ROU BLESH OOT Sub-Section 01 (ENGINE)
The following chart is provided to help in diagnosing the probable source of troublesIt should be used as guidelineSome causes or corrections may not apply to specific modelSYMPTOM
CONDITION TestInspection ENGINE BACKFIRESNORMAL USE1) Check spark plug(s)a) Carbon