Dellorto PHM Carburetor Parts

Dellorto PHM Carburetor Parts.

On this page you will find all currently available parts for the Dellorto PHM range carburetors.

Click HERE for an exploded view drawing of the Dellorto PHM carburettor.
The drawing will open in a new window.
You can then switch between the drawing and this page here as the numbers in the drawing match the number prefixes in the part descriptions on this page here.
So, as an example, number 7 in the drawing, is article "(7) Choke or Starter Jet for a Dellorto PHM carburetor 7746" on this page here.

Should you NOT see an "Add to cart" button with a product on this page here, then please click on the "More details" button as it indicates that there are choices to be made, for example regarding jet sizes, versions or options.

These choices are further explained on the page that opens after you click the "More details" button.

Even if no (apparent) choice is to be made, we still encourage you to click the More Details button to inform yourself in the best possible way about the specifics of what we are offering, before you place your order.

Do you require more information? Then please contact us by email as there is a good chance that we can help you anyway.

Our Contact Page can be found HERE.

Click HERE for instructions on how to set the float level of the Dellorto PHM.

Click HERE for the specifications of the K series needles used on these carburetors.

We are still very much expanding our parts offerings for these carburetors so please contact us by email if the part that you are looking for is not yet listed.

We will try to help you understand the denomination of these carburetors. As an example we will take a PHM 40 AS:

P = Pistone, Italian for "piston"; indicating that these carbs have a piston-shaped (round) throttle slide. This in contrast to the "V"-series which have a "Valvole" or "valve" slide which is flat.

H = Horizontal - indication of the direction of air flow through the carburetor.

M = Version, successor to the PHF.

40 = Venturi size in millimeters. Also called "choke" size.

A = Evolution version. Issued in sequence, the letter were assigned depending on application.

Sinistra", Italian for "left". Its counterpart is logically "right", indicated by a D for "Destra". This indicated on which side the adjustment screws are located. Taking the various ways of constructing engines into account, engine builders could opt for either right-handed or left-handed carburettors.

So, the PHM40AS from our example has a round throttle slide, horizontal airflow, measures 40 mm in venturi diameter, is of the first evolution and carries the adjustment screws of the left side.

From this, one can deduct that a PHM40AD is virtually the same carburettor, it just has the adjustment screws on the right hand side.

A relatively simple affair once you know what means what...