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  1. 09-16-2009, 08:46 PM #1
    dakotahunter12
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    smaller pulley on fuel pump????

    was told by my Yama dealer that the rep said if you put a smaller pulley on the fuel pump on a HPDI it would increase performance. Anyone tried this???
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  2. BuzzB8
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    #2 09-18-2009, 03:03 PM

    Re: smaller pulley on fuel pump???? (dakotahunter12)

    Isn't the fuel already being delivered at a very high pressure?
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