Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 10, 1998.
As of Monday, July 22nd, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsRemarks
HSR42-6-K1990-98 Harley-Davidson motorcycles originally equipped with the 1340 cc engineMikuni 42 mm carburetor is designed to replace the stock 40 mm carburetor, the carburetor's 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-389-4
  • Executive Order 389-4 / D389-4
  • ARB # D-389-4
  • Executive Order No: D-389-4
  • C.A.R.B. No. D-389-4
  • Resolution D-389-4
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-389-4 PDF

D-389-4 Document:

Current View

Previous E.O. D-389-3 | Previous E.O. D-388 | Next E.O. D-389-5 | Next E.O. D-390