Dellorto UA and MA Carburetor Parts
Dellorto UA and MA Carburetor Parts

Dellorto UA and MA Parts

Dellorto UA and MA Carburetor Parts.

On this page you will find all currently available parts for the Dellorto MA and UA range carburettors.

Click HERE for an exploded view drawing of the Dellorto UA and MA.

The numbers in the drawing correspond to the numbers in brackets at the beginning of the article description.

Click HERE for an overview of the Dellorto D-Type needles.

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

Dellorto UA and MA Carburetor Parts

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1425
(2) C Series Needle for Dellorto UA and MA carburetors

(2) C Series Needle for Dellorto UA and MA carburetors

C-series needle for the Dellorto UA and MA carburetors.

In stock in version:

  • C1 parallel 25 mm; taper 19 mm; tip 1,9 mm
  • C8 parallel 25 mm; taper 23 mm; tip 1,7 mm
  • C9 parallel 25 mm; taper 18 mm; tip 1,9 mm

Please note that the C1 variety is no longer supplied by Dellorto and consequently this is a reproduction part of the highest quality.

Required quantity per carburetor: 1

This is item number 2 in the drawing.

(2) C Series Needle for Dellorto UA and MA carburetors

2265
(2) D-Type Needle for Dellorto UA and MA carburetors

(2) D-Type Needle for Dellorto UA and MA carburetors

D-Type needle for the Dellorto UA and MA carburetors.

Original Dellorto!
Only original Dellorto Needles are marked with the famous "Inc" logo!

These needles come in many different varieties of which you can find an overview HERE.

In stock in variety:

  • D31
  • D36
  • D52

Please contact us by email if you require other varieties.

Required quantity per carburettor: 1

This is item number 2 in the drawing.

(2) D-Type Needle for Dellorto UA and MA carburetors

1486
(4) Main Jet for the Dellorto UA and MA carburetors

(4) Main Jet for the Dellorto UA and MA carburetors

Factory original main jet for the Dellorto UA and MA carburetors.

We only supply original Dellorto jets, marked with the famous diamond-shaped "Inc" logo.

Available from our stock in sizes:

  • 33
  • 35
  • 40
  • 45
  • 48
  • 50
  • 53
  • 55
  • 57
  • 58
  • 60
  • 62
  • 65
  • 67
  • 72
  • 80
  • 82
  • 84
  • 86
  • 88
  • 90
  • 91
  • 92
  • 95
  • 98
  • 100
  • 108
  • 110
  • 112
  • 115
  • 118
  • 120

Most other sizes are available on special order. Please contact us by email with your exact requirements.

Required quantity per carburettor: 1

This is item number 4 in the drawing.

(4) Main Jet for the Dellorto UA and MA carburetors

1488
(5) Idle Jet for Dellorto UA and MA carburetors

(5) Idle Jet for Dellorto UA and MA carburetors

Factory original idle jet for the Dellorto MA and UA carburetors.

We only supply original Dellorto jets, marked with the famous diamond-shaped "Inc" logo.

Thread size: M5 x 0.8 mm.

Available from our stock in sizes:

  • 48
  • 50
  • 52
  • 55
  • 58
  • 60

Most other sizes are available on special order. Please contact us by email with your exact requirements.

Required quantity per carburettor: 1

This is item number 5 in the drawing.

(5) Idle Jet for Dellorto UA and MA carburetors

1607
(6) Long Float Needle for Dellorto UA and MA carburetors

(6) Long Float Needle for Dellorto UA and MA carburetors

Long float needle for the Dellorto UA and MA series carburetors.

Is used in combination with Float Number 7 in the drawing.

Required quantity per carburettor: 1

This is item number 6 in the drawing.

This is a genuine Dellorto part.

(6) Long Float Needle for Dellorto UA and MA carburetors

2390
(7) Float for Dellorto UA and MA carburetors

(7) Float for Dellorto UA and MA carburetors

Original Float for the Dellorto UA and MA series carburetors.

Please note that there are two different kinds of floats for these carburetors. These versions are NOT interchangeable!

This is # 7 in the drawing that uses a long, thin, needle valve.

Please note that the existing stocks are slowly getting depleted and that this float is only still available in the 6.5 gram version.

The needle retaining clip is already installed.

Required quantity per carburettor: 1

This is item number 7 in the drawing.

This is a genuine Dellorto part.

(7) Float for Dellorto UA and MA carburetors

3076
(8) Float for Dellorto UA and MA carburettors

(8) Float for Dellorto UA and MA carburetors

Original Float for the Dellorto UA and MA series carburettors.

This is the 6 gram version.

Please note that there are two different kinds of floats for these carburettors that come in various weights.

These versions are NOT interchangeable!

This is # 8 in the drawing that uses a float arm and a short, stubby, needle valve.

We also strongly advise against experimenting with float weights so if your float is damaged or leaking, please replace it by one of the same version and weight.

Required quantity per carburettor: 1

This is item number 8 in the drawing.

This is a genuine Dellorto part.

(8) Float for Dellorto UA and MA carburetors

1481
(10) Cable Adjuster for the Dellorto UA and MA carburettors

(10) Cable Adjuster for the Dellorto UA and MA carburetors

Cable adjuster for the Dellorto UA and MA series carburettors.

Fits an outer cable with an external diameter of 6.75 mm.

This cable adjuster uses Lock Nut 1692 to secure its setting.
For your convenience, you can order this lock nut right along with this adjuster by simply selecting it through the drop box above.

Required quantity per carburettor: 1

This is item number 10 in the drawing.

This is a genuine Dellorto part.

(10) Cable Adjuster for the Dellorto UA and MA carburetors

1692
(11) Lock nut for Cable Adjuster on the Dellorto UA and MA carburettors

(11) Lock nut for Cable Adjuster on the Dellorto UA and MA carburetors

This is the locknut that secures the setting on the throttle cable for the Dellorto UA and MA series carburettors.

Required quantity per carburettor: 1

This is item number 11 in the drawing.

 

(11) Lock nut for Cable Adjuster on the Dellorto UA and MA carburetors

3570
(13) Choke Clip for the Dellorto UA and MA carburettors

(13) Choke Clip for the Dellorto UA and MA carburetors

Clip to secure the choke on the Dellorto UA and MA series carburettors.

Required quantity per carburettor: 1

This is item number 13 in the drawing.

This is a genuine Dellorto part.

 

(13) Choke Clip for the Dellorto UA and MA carburettors

1409
(14) Throttle Slide Spring for Dellorto UA and MA carburettors

(14) Throttle Slide Spring for Dellorto UA and MA carburetors

Return spring for the throttle slide on the the Dellorto UA and MA series carburettors.

Required quantity per carburettor: 1

This is item number 14 in the drawing.

This is a genuine Dellorto part.

(14) Throttle Slide Spring for Dellorto UA and MA carburetors

1407
(15) Needle Clip for the Dellorto UA and MA carburettors

(15) Needle Clip for the Dellorto UA and MA carburetors

Clip to secure the needle on the Dellorto UA and MA series carburettors.

Required quantity per carburettor: 1

This is item number 15 in the drawing.

This is a genuine Dellorto part.

 

(15) Needle Clip for the Dellorto UA and MA carburetors

1494
(20) Fuel Union Nut for Dellorto UA and MA carburetors

(20) Fuel Union Nut for Dellorto UA and MA carburetors

New-Old-Stock Fuel Union Nut for the Dellorto UA and MA series carburetors.

Please note that as this is an original old stock item, the surface finish might be less-than-perfect.

Required quantity per carburettor: 1

This is item number 20 in the drawing.

This is a genuine Dellorto part.

 

(20) Fuel Union Nut for Dellorto UA and MA carburetors

1416
(21) Fuel Banjo Fiber Ring for the Dellorto UA and MA carburettors

(21) Fuel Banjo Fiber Ring for the Dellorto UA and MA carburetors

Fiber ring to seal the fuel banjo on the Dellorto UA and MA series carburettors.

This ring has an internal diameter of 13.75 mm.

Required quantity per carburettor: 2

This is item number 21 in the drawing.

 

(21) Fuel Banjo Fiber Ring for the Dellorto UA and MA carburetors

1419
(23) Fuel banjo filter for the Dellorto UA and MA carburettors

(23) Fuel banjo filter for the Dellorto UA and MA carburetors

Fuel inlet filter for Dellorto UA and MA series carburettors using a 11 mm banjo bolt.

Required quantity per carburettor: 1

This is item number 23 in the drawing.

This is a genuine Dellorto part.

(23) Fuel banjo filter for the Dellorto UA and MA carburetors

1491
(26) Bolt for Float Bowl cover on Dellorto UA and MA carburetors

(26) Bolt for Float Bowl cover on Dellorto UA and MA carburetors

Bolt to secure the float bowl cover on the Dellorto UA and MA carburetors.

Required quantity per carburettor: 2

This is item number 26 in the drawing.

This is a genuine Dellorto part.

 

 

(26) Bolt for Float Bowl cover on Dellorto UA and MA carburetors

5010
(27) Spring Washer for Dellorto UA and MA carburetors

(27) Spring Washer for Dellorto UA and MA carburetors

Spring washer for the Dellorto UA and MA carburetors.

Required quantity per carburettor: 2

This is item number 27 in the drawing.

 

 

 

(27) Spring Washer for Dellorto UA and MA carburetors

1414
(31) Float Bowl Gasket for Dellorto UA and MA carburettors

(31) Float Bowl Gasket for Dellorto UA and MA carburetors

Gasket to seal the float bowl and float chamber top on the Dellorto UA and MA carburetors.

Required quantity per carburettor: 1

This is item number 31 in the drawing.

This is a genuine Dellorto part.

 (31) Float Bowl Gasket for Dellorto UA and MA carburettors

2115
(32) Mixture Screw for Dellorto UA and MA carburetors

(32) Mixture Screw for Dellorto UA and MA carburetors

Mixture screw for the Dellorto UA and MA carburetors.

Required quantity per carburettor: 1

This is item number 32 in the drawing.

This is a genuine Dellorto part.

 

 

(32) Mixture Screw for Dellorto UA and MA carburetors

1411
(33) Spring for Dellorto UA and MA carburetors

(33) Spring for Dellorto UA and MA carburetors

Spring to secure the setting of the throttle stop screw and mixture screw on the Dellorto UA and MA carburetors.

Required quantity per carburettor: 2

This is item number 33 in the drawing.

This is a genuine Dellorto part.

 

 

(33) Spring for Dellorto UA and MA carburetors

1532
(34) Throttle Stop Screw for Dellorto UA and MA carburetors

(34) Throttle Stop Screw for Dellorto UA and MA carburetors

Throttle Stop Screw for the Dellorto UA and MA carburetors.

Required quantity per carburettor: 1

This is item number 34 in the drawing.

This is a genuine Dellorto part.

 

 

(34) Throttle Stop Screw for Dellorto UA and MA carburetors

1382
(35) Fiber Washer for the Float Bowl for Dellorto UA and MA carburetors

(35) Fiber Washer for the Float Bowl for Dellorto UA and MA carburetors

Fiber washer to seal the connection of the float bowl to the carburettor body on the Dellorto UA and MA carburetors.

Required quantity per carburettor: 2

This is item number 35 in the drawing.

 

 

 

(35) Fiber Washer for the Float Bowl for Dellorto UA and MA carburetors

2200
(36) Vertical Float Bowl for Dellorto UA and MA carburetors *Discontinued*

(36) Vertical Float Bowl for Dellorto UA and MA carburetors *Discontinued*

Vertical float bowl to suit the Dellorto UA and MA carburetors.

Required quantity per carburettor: 1

This is item number 36 in the drawing.

 

 

(36) Vertical Float Bowl for Dellorto UA and MA carburetors *Discontinued*

This float bowl is NO LONGER SUPPLIED by Dellorto and existing stocks have been depleted !

2838
(43) Needle Valve for the Dellorto UA and MA carburettors

(43) Needle Valve for the Dellorto UA and MA carburetors

Genuine Dellorto, Viton-tipped, needle valve for the Dellorto MA and UA series carburettors.

This is the solid brass version with, of course, the famous red Viton tip for perfect sealing properties.

Required quantity per carburettor: 1

This is item number 43 in the drawing.

This is a genuine Dellorto part.

(43) Needle Valve for the Dellorto UA and MA carburetors

2993
(50) Trumpet for the Dellorto UA and MA carburetors

(50) Trumpet for the Dellorto UA and MA carburetors

Screw-on trumpet for the Dellorto UA and MA series carburettors with an external thread size of M27 x 1.25mm.

Measures 56 mm in overall length and 40 mm at the widest point.

Required quantity per carburettor: 1

This is item number 50 in the drawing.

Manufactured from a solid billet of aluminium.

(50) Trumpet for the Dellorto UA and MA carburetors

C1050
C1050 Pipercross Universal Airfilter Socks for Ram Pipes

C1050 Pipercross Universal Airfilter Socks for Ram Pipes

These are the famous Pipercross Ram Pipe Socks which are probably the most universal airfilter solution when working with individual air stacks.

These socks are easily tailored to size by shortening them with a pair of scissors.

The generous inner diameter makes them suitable for virtually all rampipes.

Created out of the famous Pipercross foam, the socks don't require any oiling but are used "dry" and are easily washed out in water with a mild detergent.

This is the "normal" version, very well suited for street and track use. Should you be using your vehicle in extremely dusty circumstances, like auto- and motocross, we recommend the Heavy Duty version, C1050MX.

Dimensions:

  • Internal diameter: 70 mm
  • External diameter: 95 mm
  • Internal height: 100 mm
  • External height: 115 mm

Before putting the socks in place, you cut them to size. Then slide them onto the ram pipes and, when desired, you can secure them in place with a simple plastic tie-strap.

Although Pipercross supplies these only in pairs, we understand the need in the market for "singles" and consequently we sell these individually.

Please note that we show a ram pipe in the photos but that this is NOT included.

C1050 Pipercross Universal Airfilter Socks for Ram Pipes

C1050MX
C1050MX Heavy Duty Pipercross Universal Airfilter Socks for Ram Pipes

C1050MX Heavy Duty Pipercross Universal Airfilter Socks for Ram Pipes

These are the famous Heavy Duty Pipercross Ram Pipe Socks which are probably the most universal airfilter solution when working with individual air stacks.

These socks are easily tailored to size by shortening them with a pair of scissors.

The generous inner diameter makes them suitable for virtually all rampipes.

Created out of not less than 3 layers of the famous, green, Heavy Duty Pipercross foam, the socks don't require any oiling but are used "dry" and are easily washed out in water with a mild detergent.

Being the heavy duty version, these socks are very well suited for use in extremely dusty circumstances like auto- and motocross.

For street and track use, the better option is to pick the normal version, C1050.

Dimensions:

  • Internal diameter: 55 mm
  • External diameter: 95 mm
  • Internal height: 95 mm
  • External height: 120 mm

Before putting the socks in place, you cut them to size. Then slide them onto the ram pipes and, when desired, you can secure them in place with a simple plastic tie-strap.

Although Pipercross supplies these only in pairs, we understand the need in the market for "singles" and consequently we sell these individually.

Please note that we show a ram pipe in the photos but that this is NOT included.

C1050MX Heavy Duty Pipercross Universal Airfilter Socks for Ram Pipes

C1052
C1052 Enclosed Pipercross Universal Airfilter Socks for Ram Pipes

C1052 Enclosed Pipercross Universal Airfilter Socks for Ram Pipes

These are the famous "enclosed" Pipercross Ram Pipe Socks which are probably the most universal airfilter solution when working with individual air stacks.

Contrary to the C1050 "open" socks, this version has a rear panel with opening so that it "hugs" the ram pipe.

The generous inner diameter makes them suitable for virtually all rampipes.

The opening in the rear panel measures some 55 mm in diameter but can of course be stretched significantly thanks to the nature of the foam.

Created out of 3 layers of the the famous Pipercross foam, the socks don't require any oiling but are used "dry" and are easily washed out in water with a mild detergent.

Dimensions:

  • Internal diameter: 80 mm
  • External diameter: 110 mm
  • Internal height: 42.5 mm
  • External height: 70 mm

Simply slide the sock onto the ram pipes and, when desired, you can secure them in place with a plastic tie-strap.

Please note that we show a ram pipe in the photos but that this is NOT included.

C1052 Enclosed Pipercross Universal Airfilter Socks for Ram Pipes

UA-S1 GASKET SET
Service Kit for the Dellorto UA S1 carburetors

Service Kit for the Dellorto UA S1 carburetors

Service Kit for the Dellorto UA S1 series carburetors.

Contains all required fiber rings, a float chamber gasket, fuel filter and needle clip.

Required number per carburetor: 1

 

Service Kit for the Dellorto UA S1 carburetors

UBGASKETSET
Service Kit for the Dellorto UA and MA carburettors

Service Kit for the Dellorto UA and MA carburetors

Service Kit for the Dellorto UA, UB, MA and MB series carburetors.

Contains all required fiber rings, a float chamber gasket, fuel filter and needle clip.

Required number per carburettor: 1

 

Service Kit for the Dellorto UA and MA carburetors

flexoid5xa4
Set of 5 x A4 Sheets of Flexoid Gasket Paper Material

Set of 5 x A4 Sheets of Flexoid Gasket Paper Material

Set of 5 x A4 Sheets of Flexoid Gasket Paper Material.

Almost a "First Aid Kit" for the home mechanic!

This set of first quality gasket paper contains 5 sheets in DIN A4 size (300 x 210 mm or roughly 11.8 x 8.3 inches) in 5 different thicknesses.

You can cut these sheets to almost any desirable size and shape to help you out when the required gasket is not at hand.

The sheets are made of cellulose based, plasticised gelatin-impregnated material.

The sheets are of the following thickness:

  • 0.15 MM
  • 0.25 MM
  • 0.4 MM
  • 0.8 MM
  • 1.6 MM

Set of 5 x A4 Sheets of Flexoid Gasket Paper Material

OWV
Sytec Fuel Line One Way Valve

Sytec Fuel Line One Way Valve

Sytec Fuel Line One Way Valve.

We have two versions available:

  • Suitable for 6 mm internal diameter fuel hoses
  • Suitable for 8 mm internal diameter fuel hoses

Silver anodized finish.

Prevents fuel from leaking back into the fuel tank.

Suitable for regular fuel, E10, E85 and Diesel.

Viton seals.

We strongly advise you to secure your fuel lines using our stainless steel jubilee clips, despite the barbed edge on these unions.
For your convenience, you can order these clips right along with the union by simply selecting it through the drop-box above.

Sytec Fuel Line One Way Valve

PRO805
Sytec Pro-Line in-line fuel filter - 8 mm

Sytec Pro-Line in-line fuel filter - 8 mm

In line fuel filter with cleanable / replaceable filter.

Suitable for 8 mm internal diameter fuel hoses.

Replacement filter elements are available HERE.

Chrome finish.

Toughened glass phial.

Suitable for system pressures of up to 10 PSI / 0.7 Bar.

Supplied with 2 Jubilee clips.

Couplings Specifications:
Fuel Unions for fuel lines with 8 mm internal diameter

Sytec Pro-Line in-line fuel filter - 8 mm

PRO896
Replacement elements for Sytec in-line fuel filter

Replacement elements for Sytec in-line fuel filter

3 replacement elements for the Sytec Pro-Line in-line fuel filter.

Come complete with new rubber seals.

These elements fit our PRO804 and PRO805 Sytec in-line fuel filters.

Suitable for system pressures of up to 10 PSI / 0.7 Bar.

 

 

 

 

Replacement elements for Sytec in-line fuel filter

jet sizer
Carburettor Jet Gauges

Carburettor Jet Gauges

Calibrated gauges to measure jet sizes.

The perfect way to determine the exact size of jets, regardless of what is indicated on them.

Sometimes jets are drilled out to requirement and / or the original indicators are removed or illegible which leaves you questioning the true size.

With these gauges, you can still determine which size these jets are.

Indispensable when working on modified carburettors!

Two different sets available:

Set 1: 20 gauges, ranging from 0,45 mm to 1,50 mm
Set 2: 16 gauges, ranging from 1,50 to 3,00 mm

Priced per set!

Carburettor Jet Gauges

JSG01
Jet size gauge 0.5 to 1.5 mm

Jet size gauge 0.5 to 1.5 mm

Jet sizing tool to measure jets between 0.5 and 1.5 mm internal diameter.

Measurements are taken by inserting the tapered needle into the jet.

The size can then directly be read from the scale.

 

 

 

Jet size gauge 0.5 to 1.5 mm

JDK01
54-Piece Jet Drill Set

54-Piece Jet Drill Set

Jet drill set comprising 50 jet drills and and 4 pin vises.

The perfect way to fine-tune any jet to suit your needs.

Also highly suited to clean clogged-up jets.

The set contains:

  • 4 pin vises to suit all drill sizes included
  • 10 drills ranging from 1,0 to 2,0 mm:
    1.0, 1.1, 1.2, 1.3, 1.5, 1.6, 1.7, 1.8, 1.9 & 2.0 mm
  • 20 drills ranging is size from 0.3 mm to 1.6 mm:
    0.3, 0.35, 0.4, 0.45, 0.50, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.2, 1.3, 1.4, 1.5 & 1.6 mm
  • 20 x drills Gauge Number 80 to 61 (0.343 to 0.991 mm / 0.0135 to 0.0390 inches )

54-Piece Jet Drill Set

JET REAMER
16-Piece Jet Reamer Set

16-Piece Jet Reamer Set

Jet reamer kit comprising 16 reamers and and a pin vise.

The perfect way to fine-tune any jet to suit your needs.

The set contains:

  • 1 pin vise to suit all reamer sizes in this set
  • 1 storage case
  • 16 reamers ranging is size from 0.33 mm to 2.00 mm:
    0.33; 0.40; 0.45; 0.50; 0.60; 0.70; 0.75; 0.80; 0.90; 1.00; 1.10; 1.20; 1.40; 1.60; 1.80; 2.00 mm

16-Piece Jet Reamer Set

G4074
Gunson Colortune See Through Spark Plug Kit

Gunson Colortune See Through Spark Plug Kit

Gunson Colortune See Through Spark Plug Kit.

The Tune-up plug for Petrol or LPG, 2 and 4 stroke engines with single, twin or multiple carburettors or fuel injection systems.

The original and best tool for seeing what's happening inside the combustion chamber of the petrol engine.

It allows you to see the combustion and to adjust the mixture by color.

Fits most petrol engines in standard form with additional adapters available for vehicles with alternative sized spark plugs.

Kit includes:

  • See-Through Spark Plug
  • Hexagonal adapter for spark plug wrench
  • Copper sealing washer
  • Extension Cord
  • Extension tube with mirror
  • Cleaning brush
  • Instructions in English

Colortune will fit most vehicles.

Extra adapter sizes available separately

Available in the following basic thread sizes:

  • 10 mm
  • 12 mm
  • 14 mm - SOLD OUT AT THE MOMENT!

For our complete offerings on Gunson Tools, please visit www.GunsonShop.com.

Gunson Colortune See Through Spark Plug Kit

Available from our Stock

DD0906
Dellorto Carburatori Sticker - Large

Dellorto Carburatori Sticker - Large

Official issue sticker / decal with the Dellorto logo and Italian flag "tricolore" colors.

Measures 9 x 3 cm (3.54 x 1.2 inches).

This is Number 1 in the photograph.

Made of high quality vinyl.

 

 

 

Dellorto Carburatori Sticker - Large

DD0909
Dellorto Carburatori Sticker - Medium

Dellorto Carburatori Sticker - Medium

Official issue sticker / decal with the Dellorto logo and Italian flag "tricolore" colors.

Measures 8 x 4 cm (3.1 x 1.55 inches).

This is Number 2 in the photograph.

Made of high quality vinyl.

 

 

 

Dellorto Carburatori Sticker - Medium

DD0905
Dellorto Carburatori Sticker - Small - Low

Dellorto Carburatori Sticker - Small - Low

Official issue sticker / decal with the Dellorto logo and Italian flag "tricolore" colors.

Measures 6 x 2 cm (2.4 x 0.8 inches).

This is Number 3 in the photograph.

Made of high quality vinyl.

 

 

 

Dellorto Carburatori Sticker - Small - Low

Patch
Dellorto Carburatori Sew-On Patch

Dellorto Carburatori Sew-On Patch

Official issue sew-on patch with the Dellorto logo and Italian flag "tricolore" colors.

Measures 12 x 6.5 cm (4.7 x 2.6 inches).

Elaborately embroidered.

 

 

Dellorto Carburatori Sew-On Patch