Approval Details

Valid E.O.


This Executive Order approved the specified parts on on December 12, 1995.
As of Wednesday, February 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
HSR42-4-K1990 -1994 Harley Davidson motorcycles equipped with a carbureted 1340 Evolution.The Mikuni 42 mm carburetor is designed to replace the stock 40 mm carburetor, the carburetors fuel jet is part no#N100.604-160, and the A/F ratio is factory set at 1 1/4 turns outward and sealed with a tamper proof cap.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-389
  • Executive Order 389 / D389
  • ARB # D-389
  • Executive Order No: D-389
  • C.A.R.B. No. D-389
  • Resolution D-389
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-389 PDF

D-389 Document:

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