2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 207Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 207

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CRANKCASE

NOTE: Lubricate the crankcase bolt threads with engine oil
S Remove the lower crankcase and the crankshaft journal lower bearingsS Measure the compressed Plastigauge width