2004 Bombardier DS650/DS650 Baja/DS650 Baja X Shop Manual, Page 61Get this manual
Section 03 ENGINE Subsection 02 (TROUBLESHOOTING)
SYMPTOM CONDITION TestInspection
OIL CONTAMINATION ON CYLINDER ANDOR HEADNORMAL USE1Check screws for torqueaLoose screwsRetighten screws with recommended torquebGaskets are brittle, hard, worn out or otherwise damagedReplace damaged gaskets, O-rings or the V-ring on breather