CB650SC/Carbs

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Keihin VE54A

Item Spec Note
Venturi 29.2mm (1.15in)
Type VE
Style CV (constant velocity)
Float 18.5mm +/-1mm (0.61in +/-0.04in) Non-adjustable
Idle 1,100RPM +/-100RPM
Throttle grip free-play 2-6mm (0.08-0.24in)
Fast Idle 3,000RPM +/-500RPM choke on
Needle marking "79K"
Choke type By-starter

O-rings

Desc. Part Number I.D. Thickness Number
Small, (fuel tubes) 6mm 1.8mm 4x
Large, (fuel tee) 7mm 2mm 2x
Thin, (breather tube tees) 4x
Cly. head to boot couplings 91306-ME5-003 ->
91306-HA0-003
33.7mm 2.6mm 8x