2004 Yamaha Motorsports Big Bear 400 4x4 Owners Manual - Page 115
2004 Yamaha Motorsports Big Bear 400 4x4 Manual
Page 115 highlights
NOTE: The oil level should be between the minimum and maximum level marks. _ _ 5. If the engine oil is at or below the minimum level mark, add sufficient oil of the recommended type to raise it to the correct level. CAUTION: _ Be sure no foreign material enters the crankcase. _ To change the engine oil (with or without oil filter element cleaning) 1. Place the ATV on a level surface. 2. Warm up the engine for several minutes, and then turn it off. 3. Place a container under the engine to collect the used oil. 4. Remove the engine oil filler cap, and then remove the engine oil drain bolt to drain the oil from the crankcase. 6. Insert the dipstick into the oil filler hole, and then tighten the engine oil filler cap. 1. Engine oil drain bolt 3. Compression spring 2. O-ring 4. Oil strainer 8-6