2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 448Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 448

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MAINTENANCE SPECIFICATIONS Model Valve spring: Free length Intake Exhaust Installed length (valve closed) Intake Exhaust Compressed spring force (installed) Intake Exhaust Spring tilt Intake Exhaust W