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  1. #1
    andy95'slx780's Avatar
    Join Date
    Sep 2006

    587 and 657 carb same need and seats???

    hi guys... u would just like to ask if the two engine is same carb jets and seats? or there low and high speed are just the only difference in them thanx..

  2. #2
    The Needle and Seats are different depending on the specific Model the Carb(s) are from just like the Main and Pilot Jet sizes.
    Check the Carb. section of the OEM Parts microfische to determine what you have and/or need to get.
    The numbers are embossed on the Jets and N/S's---

    I have a variety of both N/S's, Pilot Jets and Main Jets available (new and used)-- let me know what you need, I might be able to help 'ya out.

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