2006 Bombardier Outlander Max Series Factory Service Manual, Page 69Get this manual
Section 02 TROUBLESHOOTING Subsection 02 (TROUBLESHOOTING CHART)
SYMPTOM CONDITION TestInspection
ENGINE DOES NOT OFFER MAXIMUM POWER ANDOR DOES NOT REACH MAXIMUM OPERATING RPMNORMAL USE1Check spark plug condition andor gapaFouled spark plug or wrong spark plug gapReadjust gap and clean spark plug or replace2Check spark plug typeaImproper spark plug heat rangeInstall recommended spark plug (refer to TECHNICAL DATA)