2004 Ski-Doo Elite Factory Service Manual, Page 61Get this manual
Section 03 TROUBLESHOOTING Subsection 01 (ENGINE)
SYMPTOM
ENGINE SUDDENLY TURNS OFF
CONDITION
TESTINSPECTION
NORMAL USE4Piston color is dark due to seizure on intake and exhaust sidesaCooling system leaks and lowers coolant levelTighten clamps or replace defective partsAdd antifreeze in cooling system until appropriate level is reachedReplace damaged parts5Cracked or broken pistonaCracked or broken piston due to excessive pistoncylinder clearance or engine overrevingReplace pistonCheck pistoncylinder clearance (refer to ENGINE BLOCK)6Check piston rings and cylinder surface for groovesaPoor oil qualityUse Bombardier's recommended oilbContamination through engine intakeReplace defective part(s) and use new air filter7Check crankshaft, rocker arms movementaOil pump failure due to leak of oilRepair and replace defective parts and use Bombardier's recommended oilbOil contamination due to clogged oil filteroil sieveReplace oil, replace defective part(s) (refer to MAINTENANCE CHART and LUBRICATION SYSTEM)8Check valve springs exhaustintakeaBroken valve spring damages the cylinder head, valve(s), rocker arm(s), piston, piston rings and connecting rodReplace defective part(s)9Check if fuel supply is sufficient at high RPMaFuel line is contaminated andor bentClean andor replace defective part(s)10Check fault codes in B.U.D.SsystemaCheck if electrical actuator(s) isare defectiveReplace defective part(s) (refer to COMPONENT INSPECTION AND ADJUSTMENT)