2004 Yamaha Motorsports Big Bear 400 Owners Manual - Page 114
2004 Yamaha Motorsports Big Bear 400 Manual
Page 114 highlights
EBU11812 Engine oil and oil filter element The engine oil level should be checked before each ride. In addition, the oil must be changed and the oil filter element cleaned at the intervals specified in the periodic maintenance and lubrication chart. To check the engine oil level 1. Place the ATV on a level surface. 2. Warm up the engine for several minutes, and then turn it off. 3. Wait a few minutes until the oil level settles before checking. 4. Remove the engine oil filler cap, and then wipe the dipstick off with a clean rag. Insert the dipstick in the filler hole (without screwing it in), and then remove it again to check the oil level. 1. Engine oil filler cap 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. _ 8-5