2008 Yamaha Motorsports Big Bear 400 4x4 IRS Owners Manual - Page 110
2008 Yamaha Motorsports Big Bear 400 4x4 IRS Manual
Page 110 highlights
In addition, the differential gear oil level must be checked and the oil changed as follows at the intervals specified in the periodic maintenance and lubrication chart. To check the differential gear oil level 1. Place the ATV on a level surface. NOTE: The differential gear oil level must be checked on a cold engine. 2. Remove the differential gear oil filler bolt, and then check the oil level in the differential gear case. 8 1. Differential gear oil 2. Differential gear oil filler bolt 3. Correct oil level NOTE: The oil level should be at the brim of the filler hole. 3. If the oil is below the brim of the filler hole, add sufficient oil of the recommended type to raise it to the correct level. 4. Install the oil filler bolt, and then tighten it to the specified torque. Tightening torque: Differential gear oil filler bolt: 23 Nm (2.3 m·kgf, 17 ft·lbf) 8-18
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