2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 40Get this manual
Section 02 TROUBLESHOOTING GUIDE Subsection 01 (ENGINE (2-STROKE))
Symptom: PISTON RING AND CYLINDER SURFACES ARE SCRATCHED1Check oil quality- Poor quality oilUse XP-S injection oil2Check injection pump and its hoses- Inadequate injection pump adjustment andor defective hosesAdjust pump according to specifications (refer to ENGINE) andor replace hoses
Symptom: ENGINE DOES NOT OFFER MAXIMUM POWER ANDOR DOES NOT REACH