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39mm

  1. L

    39mm FCR GenII carbs

    Guys, What year and model bergs had 39mm genII cards with TPS? Thanks for info
    • ls1yj
    • Thread
    • 39mm carbs fcr genii
    • Replies: 3
    • Forum: Fuel
  2. k-dub

    FCR 41mm vs. 39mm

    A topic I've been interested to get feed back on is the FCR 41 vs. the 39 for post 04 450's. The FC when made was equiped with the 41mm and all japanese MX 450's are as well. Sredrum off of TFZtech will taper bore the 39mm to 41mm for $125 including shipping back to you. Cheap mod if its worth...
    • k-dub
    • Thread
    • 39mm 41mm fcr
    • Replies: 1
    • Forum: Fuel
  3. M

    KEIHIN FCR MX 39mm CARB

    can anyone tell me if this thing will work on an 98 FC501
    • mberg501
    • Thread
    • 39mm carb fcr keihin
    • Replies: 2
    • Forum: Fuel