2004 Yamaha Motorsports Big Bear 400 Owners Manual - Page 118
2004 Yamaha Motorsports Big Bear 400 Manual
Page 118 highlights
Recommended oil: See page 10-2. Oil quantity: Without oil filter element replacement: 2.9 L (2.6 Imp qt, 3.1 US qt) With oil filter element replacement: 3.0 L (2.6 Imp qt, 3.2 US qt) 12. Start the engine, and then let it idle for several minutes while checking it for oil leakage. If oil is leaking, immediately turn the engine off and check for the cause. 13. Turn the engine off, and then check the oil level and correct it if necessary. CAUTION: _ G G _ In order to prevent clutch slippage (since the engine oil also lubricates the clutch), do not mix any chemical additives. Do not use oils with a diesel specification of "CD" or oils of a higher quality than specified. In addition, do not use oils labeled "ENERGY CONSERVING II" or higher. Make sure that no foreign material enters the crankcase. 8-9