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what are thrse carbs.

Discussion in 'The Garage' started by koyuga, Nov 2, 2017.

  1. koyuga

    koyuga XS650 Enthusiast

    Purchased these off fleabay for my 650 build. These were linked carbs advertised as X650.
    I bought these to substitute for my bs38cv individual carbs.
    Yet I showed them to an informed person who said they weren't off a 650???
    Engine intake side.
    ID=32mm. OD=43mm
    Filter side.
    OD=49.8 mm
    Top cover 76.8 roughly. IMAG1633.jpg IMAG1635.jpg IMAG1640.jpg IMAG1638.jpg
  2. grizld1

    grizld1 Grumpy old man Top Contributor

    The "informed person" is indeed well informed. Those are not XS650 carburetors. For one thing, the XS650 was never fitted with carbs having a venturi diameter smaller than (nominal) 34 mm., and the throttle stop adjustment is in the wrong place. Also XS650 carbs with side mounted mixture screws had a 38 mm. (nominal) venturi diameter. Those may have come from an XS360 or similar small twin.
    gggGary likes this.
  3. koyuga

    koyuga XS650 Enthusiast

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