2004 Ski-Doo Elite Factory Service Manual, Page 67Get this manual
Section 03 TROUBLESHOOTING Subsection 02 (TRANSMISSION AND BRAKE SYSTEM)
SYMPTOM
PULLEYS DO NOT DOWN SHIFT PROPERLY
CONDITION
TESTINSPECTION
NORMAL USE1Check driven pulley spring tensionaSpring tension is too lowAdjust according to specifications (refer to TECHNICAL DATA) or replace spring2Refer to VIBRATIONS COMING FROM DRIVEN PULLEY and check items listed3Check drive pulley bushings (cleanliness, wear, etcaBushings stick to fixed half pulley shaftClean or replace