2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 116Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 116

SECONDARY SHEAVE DISASSEMBLY WARNING S Use extreme CAUTION when disassembling the secondary sheave since serious injury can
Nuts (spring seat) INSPECTION 1Inspect: Sliding sheave Fixed sheave Spring seat CracksdamageReplaceS Stopper WeardamageReplace
2Inspect: Bushing (spring seat) Sliding sheave (V-belt contact surface) ScratchesweardamageReplaceS Sliding bushing Unsymmetrical
weardamageReplace 3Inspect: Secondary sheave spring CracksdamageReplace4Measure: Secondary sheave spring free length Below