2005 Ski-Doo Racing Handbook, Page 382Get this manual
SECTION 082005 MX 550 AND 380 FC
NOTE: An oil pump shaft test must be done to complete the oil system leak testRefer to LEAK TEST AND ENGINE DIMENSION MEASUREMENT for the procedure
Injection Oil Level Switch
Before replacing the injection oil level switch no6, check it according to the following procedure: Remove tuned pipe Disconnect switch connectors and place jumper wire between them If the oil light turns on, replace the switch If the light stay off, check the light and the wiring harnessTo remove the switch, use the following procedureRemove tuned pipeSiphon injection oil reservoirUnplug switch connectorsPull oil level switch no6 out of reservoir
OIL PUMP IDENTIFICATION
Pump Lever
Different engines need different pumpsSee identification on lever no1CAUTION: Always mount proper pump on engineENGINE TYPE 377 552 593 and 593 HO SDI 693 793 SDI OIL PUMP IDENTIFICATION 05 03 02 01 01
Injection Oil Filter
Remove tuned pipeSiphon injection oil reservoirDisconnect oil filter hose no7 from the reservoir no2Remove air box and carburetor or throttle bodyDisconnect oil hoses no7 and no8 from the oil filter no9 and remove it