2004 Skidoo Tundra Skandic Series Service Manual, Page 69Get this manual
Section 03 TROUBLESHOOTING Subsection 02 (ENGINE)
SYMPTOM CONDITION
ENGINE DOES NOT OFFER MAXIMUM POWER ANDOR DOES NOT REACH MAXIMUM OPERATING RPMNORMAL USE9Check exhaust systemaRestriction or exhaust system leakageReplace or reseal with Ultra Copper10Check ignition timingaDecrease in power due to delayed ignitionAdjust according to specifications (refer to TECHNICAL DATA)11Check engine compressionaWorn piston(s) and ring(s)Replace (refer to TECHNICAL DATA for specifications)12Check engine cooling systemaImproper fan belt tensionAdjust fan belt (refer to TECHNICAL DATA)bCoolant level is low, cap fails to pressurize system or air circulates through linesAdjust level, replace cap or bleed cooling system13Check reed valveaImproper tightness andor openingReplace or adjustRefer to proper engine subsection