studdering

  1. Port

    Intermittent backfire during acceleration

    I am trying to diagnose a strange new backfire/stumble issue i have Specs: 1981 XS650 SH with Ganzo Box ignition BP7ES plugs 0.035" gaping High output coil from Mikes Carbs are well synced Stock air boxes Stock jetting (i believe) Was running with no issue on a PAMCO before the Ganzo...
    • Port
    • Thread
    • acceleration back fire backfire carb carb advice needed ignition studdering
    • Replies: 17
    • Forum: The Garage
  2. muskallunge

    New XS Chop Carb Tuning: Advice Needed

    1978 XS650 with pod filters, straight pipes and bs38 Mikuni's. Just replaced pilot jets from stock 27.5 to 30, main jets from 135 to 140, upped the clip on the jet needle to the 2nd slot from the top, have the mixture screw out 2.25-2.5 turns and had the entire carb sonic bath cleaned. Still...
    • muskallunge
    • Thread
    • 1978 bs38 carb carb tuning jets studdering xs650
    • Replies: 20
    • Forum: The Garage
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