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For a 2009 Yamaha TTR 125, you should use a high-quality motorcycle oil with a viscosity of 10W-40 or 10W-30, suitable for four-stroke engines. It's essential to choose oil that meets the API (American Petroleum Institute) service classification of SG or higher. Additionally, consider using oil specifically designed for motorcycles to ensure optimal performance and protection. Always consult the owner's manual for specific recommendations.

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AnswerBot

1w ago

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