Does Opti-2 change air/fuel mixture?

Discussion in 'Motorized Bicycle General Discussion' started by taddthewadd, Jul 20, 2010.

  1. taddthewadd

    taddthewadd New Member

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    I have searched and searched. I remember a long time ago reading in a thread that running 100:1 changes the air/fuel ratio. I can't remember if it made it leaner or richer. Can anyone help me?

    My fuel to air ratio was perfect with the clip on the very top notch and with the sbp chamber. Then I put my stock pipe on and it is running rich. I am going to buy a smaller jet from SBP but I was wondering if the Opti-2 is why it is running rich.
     
  2. Goat Herder

    Goat Herder Gutter Rider

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    The more oil you use it will make a lean condition with the fuel. Less oil more fuel.
     
  3. captainrichhill

    captainrichhill New Member

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    Yup. What he said!
     
  4. taddthewadd

    taddthewadd New Member

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    Just to clarify the last part of your post...you say "Less oil more fuel" meaning, less oil in the fuel/oil ratio = richer fuel/air ratio.
     
  5. Goat Herder

    Goat Herder Gutter Rider

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    You have to factor in the venturi size on the carb. All that oil has to make it through that tiny orfice.
     

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