Dell'Orto carburetors

This information is intended to supplement the information available in the Moto Guzzi spare parts catalogs and workshop manuals. Dell'Orto is commonly spelled Dellorto or Dell Orto or Delorto or Del Orto or Del'Orto.

Dell'Orto - A Guide 1.1 to the choice, setting and use of tapered-needle motorcycle carburettors

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Thanks to Ken Wisdom for sending me this document.

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Dell'Orto carburetor manual

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This information was gleaned from Dell'Orto.

This manual applies to many carburetors and covers the following:

• Carburetor: Basic principles
• The idle circuit and the progression
• The main circuit
• The carburetor: The additional systems
• The vacuum carburetor
• The venturi and the airflow control

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Dell'Orto - Features and tunings of some parts of the new range of carburettors

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Thanks to Ken Wisdom for sending me this document.

To view PDF files, you will need to download and install the free Adobe Acrobat Reader version 5.0 or higher.

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Setting the float height

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This information was gleaned from eurocarb.

Whenever the float or float-arm position does not correspond to the proper specified level setting or is not parallel to the float chamber face, bend the float arms carefully to set the correct position.

Table: Dell'Orto carburetor float height values

• For connected floats, hold the carburettor body in the position shown in fig. 13 and check that the float is at the correct distance from the carburettor body face as specified in the table.
• For the floats with independent parts, hold the carburettor upside down (fig. 14) and check that the float arm is parallel to the carburettor face.

Figure 13: setting the float on carburetors with connected floats

Figure 14: setting the float on carburetors with independent parts

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