
What Type of Oil Does a Yamaha Bear Tracker 250 Take? (1999-2004)
Published by SearchforParts.com on August 9th, 2022.
A Yamaha Bear Tracker 250, regardless of the year it was made, requires 10W-40 ATV/UTV Motor Oil. This ATV was produced from 1999 until 2004. The oil capacity is 1.5 liters or 1.6 quarts for all years it was produced.
Can I use regular motor oil that is used for cars?
You can probably use this in an emergency (oil drained until finding a mechanic, in an emergency to fill it up until proper oil is found) but it is recommended that a special oil made for ATVs be used because of high heat and RPM.

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What is the benefit of using synthetic oil for my Yamaha Bear Tracker?
Yes, you will have many benefits such has better resistance to heat, sludge prevention, great wear protection, better clutch feel and less clutch slippage. If you push your engine to the limit, then you need peace of mind with a great synthetic oil.
Are there any oils that I should not use in the Yamaha Bear Tracker?
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. It is recommended by Yamaha that any oil with a diesel specification of “CD” or any oil labeled “Energy Conserving II” or higher.
Source: Yamaha owner’s manual https://cdn.yamaha-motor.eu/owner-manuals/ATV/U4XE65.PDF