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Different size main jets

Discussion in 'Tech Tips' started by Evo, Aug 21, 2015.

  1. Evo

    Evo Well-Known Member

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    So been doing a bit of reading up on carbs and there has been a few mentions of having different size main jets between the two sides (2 cylinder). What it the idea behind the size difference?
     
    Evo, Aug 21, 2015
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  2. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    I personally believe its due to temperature. If the outside 2 are cooler than the increased richness will help and vise versa of the middle 2. That's my theory/read understanding of it. But getting you fuel air perfect would have to be SPOT on for that to apply.
     
    Damus, Aug 21, 2015
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  3. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    The zxr250 actually has the bigger mains in the middle.
    Yeah a lot of twins do that I think it's airbox related
     
    Th3_Huntsman, Aug 21, 2015
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