こんにちは😄 Are you asking about the types of oils that are compatible with YD125? ¿Está preguntando sobre los tipos de aceites que son compatibles con YD125? (I am translating with the Google Translate application.)
I usually use Yamaha oil. However, there should be no problem using oil for a general 4-cycle engine (motorcycle). Normalmente uso aceite de Yamaha. Sin embargo, no debería haber ningún problema al utilizar aceite para un motor general de 4 tiempos (motocicleta). Postscript. The component of Yamaha oil that I use was mineral oil.