2006 Bombardier Outlander Max Series Factory Service Manual, Page 39Get this manual
Section 02 TROUBLESHOOTING Subsection 01 (TROUBLESHOOTING CHART)
SYMPTOM COfIDITION TestInspection
UNUSUAL ENGINE NOISE ANDOR VIBRATION WHILE OPERATINGNORMAL USE1Check items and of UNUSUAL ENGINE NOISE ANDOR VIBRATION IN IDLE SPEED2Check noise coming from cylinder head areaaCheck valve clearance Readjust valve clearance andor replace defective part(s)bChain guide worn outReplace chain guidecStretched chain andor worn out sprocketReplace chain and sprocket at the same timedSprocket screw got loose Retighten screw with recommended torqueeRocker arm(s) is (are) worn out (valve adjustment)Readjust valve clearance andor replace rocker arm(s) Thrust washer(s) on rocker arm shaft is (are) mi ssing Fit thrust washer(s) (refer to CYLINDER AND HEAD)
SYMPTOM CONDITION TestInspection