Question:

What's the fuel/oil mixture For a Yamaha YZ?

by Guest58071  |  earlier

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Its a 1999 Yamaha YZ 80 cc

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  1. anywhere from 30:1-40:1 is safe, as long as it is jetted correctly,

    I would run 32:1


  2. we have always done 40:1 in all of our YZ  2-strokes

  3. Yamaha recommends 32:1

    If you have to mix it thinner to prevent fouling of spark plugs, the top end should be rebuilt (cylinder, piston & rings).
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