® Early Honda DOHC four and six carburetor sizings

  CB750K/F/C CB900F/C CB1000C CB1100F CBX1000
ID number VB42 VB43 VB55 VB56 VB60/62/64
Published size 30mm 32mm 32mm 33mm 28mm
Actual size 28.5mm 30.5mm 30.5mm 30.5mm 28mm
Throat / throttle diameter 34mm 36mm 36mm 37mm 32mm
Slide diameter 31.3mm 31.3mm 31.3mm 31.3mm 31.3mm
Choke diameter 36.5mm 36.5mm 36.5mm 36.5mm 35.5mm
Slide ring thickness TBD TBD TBD TBD TBD

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