Dellorto 38mm Carburetor - BMW Airhead R90S Right/Left

$379.99 USD

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Sold Individually. Complete Dellorto 38mm Carburetor for RIGHT or Left side. These are what we use on our builds. Check out our adapters Here for use on the R75 heads. These will work with the stock intake or one of the two intake filters we make as well (Velocity stack or Filter box).

These are our go to when running the big bore kits.


Original equipment on BMW R90S, but can be re-jetted to suit any 750cc or larger Airhead.

The Carb is a 4 stroke Carburetor with Accelerator Pump, standard jetting, has a M52 x 1.25 threaded Air Intake connection and clam-type engine connection to suit 45mm-48mm diameter stub and used a vacuum takeoff for balancing. The specs are:

  • 605 Slide
  • K4 Needle
  • 260 AB Atomiser
  • 155 Main jet
  • 60 Idle jet
  • 38 Pump jet
  • 60 Choke jet
  • 300 Float valve
  • 7450.1 Floats – 8.5 grams

OEM Fitment to:
Vehicle Manufacturer: BMW
Make/Model: BMW Airhead Models
Application: BMW R90S RIGHT or Left side.
Model Years: 1973 - 1976