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Intake Manifolds

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Carburetors Intake Manifolds Reed Valves and Petals Carburetor Accessories Jets Fuel System Air filter Injection System
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Product type
Intake kit Intake manifold Intake rubber
Intake manifold connection
16mm 19mm 20mm 23mm 24mm 25,5mm 25mm 26mm 28,5mm 29mm 30mm 31mm 33mm 35mm 36mm 38mm 40mm Bolt spacing 34mm
Brand
Barikit MotoForce Polini Stage6 Standard Parts Top Performances
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16mm 20mm 23mm 26mm 31mm 38mm
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Stage6
Intake Manifold Stage6 31mm TM24/PHBL Piaggio 50-180cc
Article no.: S6-3314001/RB

Intake Manifold Stage6 31mm TM24/PHBL Piaggio 50-180cc

27,00 €
In stock
RRP
30,00 €
-10% Discount
MotoForce
Intake Manifold Motoforce GY6 50cc 139QMB/QMA
Article no.: MF15.19401

Intake Manifold Motoforce GY6 50cc 139QMB/QMA

9,00 €
In stock
RRP
10,50 €
-14% Discount
Standard Parts
Intake Rubber 24mm / 29mm straight
Article no.: SP-41027

Intake Rubber 24mm / 29mm straight

5,50 €
In stock
Barikit
Intake Manifold Barikit 360° 31mm TM24/PHBL Derbi
Article no.: BAR-TUB-08

Intake Manifold Barikit 360° 31mm TM24/PHBL Derbi

24,00 €
In stock
RRP
32,50 €
-26% Discount
Standard Parts
Intake Manifold 20mm Puch Maxi / X30 2-speed automatic ZA50
Article no.: IP44223

Intake Manifold 20mm Puch Maxi / X30 2-speed automatic ZA50

13,00 €
In stock
16,50 €
-21% Discount
Sale
Standard Parts
Intake Manifold 90° / 45° 20mm Puch Maxi Z50
Article no.: IP44224

Intake Manifold 90° / 45° 20mm Puch Maxi Z50

15,00 €
In stock
17,50 €
-14% Discount
Sale
Polini
Intake Kit Polini Big Valve 23mm PHBG MBK 51
Article no.: P215.0246

Intake Kit Polini Big Valve 23mm PHBG MBK 51

57,00 €
In stock
RRP
67,00 €
-15% Discount
Top Performances
Intake Manifold Top Performances TPR 360° Mikuni TM24 AM6 / Derbi
Article no.: T9930900

Intake Manifold Top Performances TPR 360° Mikuni TM24 AM6 / Derbi

44,50 €
In stock soon
RRP
54,00 €
-18% Discount
Standard Parts
Intake Manifold 16mm SHA MBK 88
Article no.: CGN491390

Intake Manifold 16mm SHA MBK 88

14,00 €
Currently not in stock
Standard Parts
Intake Rubber 33 / 38mm straight
Article no.: SP-41022

Intake Rubber 33 / 38mm straight

9,50 €
Currently not in stock
Polini
Intake Manifold Polini Aluminium 23mm PHBG Morini / Derbi
Article no.: P215.0361

Intake Manifold Polini Aluminium 23mm PHBG Morini / Derbi

51,00 €
Currently not in stock
Polini
Intake Manifold 20mm for Polini cylinder P144.0151 Puch Maxi
Article no.: P215.0384

Intake Manifold 20mm for Polini cylinder P144.0151 Puch Maxi

15,00 €
Currently not in stock
RRP
17,00 €
-12% Discount

Intake Manifolds

The intake manifold, or inlet manifold, is the connection between the carburetor or throttle body and the engine:

  • At the cylinder head on 4-stroke engines
  • At the cylinder or directly on the crankcase on 2-stroke engines

Many intake manifolds are made of a flexible rubber compound that dries out and becomes hard over time. The condition of the intake manifold should be checked regularly, as a cracked or porous manifold causes air leaks, making the mixture too lean. This creates a high risk of engine damage.
Some vehicle models have aluminum intake manifolds. These are mounted with gaskets that must also be in perfect condition to avoid leaks.

In general, for motocross bikes and 4-stroke maxi scooters (which are designed for high performance from the factory), it is sufficient to install an OEM quality intake manifold. Even for tuning projects, the diameter of the carburetor is rarely increased, as it is sufficient in most cases.

However, the situation is different for scooters, mopeds, and 50cc bikes. Read more ↓!

Which intake manifold to use?

OEM style intake manifolds for 50cc bikes, scooters, mopeds...

For those who do not want to make major changes, there are intake manifolds in OE quality for the most common models such as Yamaha Aerox and Jog, Piaggio Zip, Gilera Runner, Peugeot Speedfight and Kisbee, Beta RR 50, Derbi Senda, Rieju MRT, Piaggio Ciao and many others.

Popular brands like Motoforce offer products in good quality at fair prices.

Tuning intake manifolds

Scooters, mopeds, and 50cc bikes, as well as 2-stroke maxi scooters and classic Vespas, are not designed for high performance. Therefore, many riders tune their engine, which often involves using a larger carburetor. From a certain diameter, an intake manifold with a larger opening is required.

There are well-known brands in this field such as Barikit, Polini, Malossi, Top Performances, Voca, Stage6 or Stage6 R/T and many more.

Carburetors with 19mm / 20mm connection (clamp flange)
  • Dellorto SHA
  • Gurtner
  • Bing
Carburetors with 24mm and 25mm connection
  • Dellorto 12-21mm type PHVA / PHBN / PHBG
  • Polini CP 17.5-21mm
  • Gurtner and Weber 12-16mm
  • TK and Chinese 2-stroke 12-16mm
  • Arreche 16-21mm
Carburetors with 28mm connection
  • Polini CP 19 to 24 mm
Carburetors with 29mm connection
  • Dellorto PHVB 19-22mm
  • Mikuni VM20
Carburetors with 31mm connection
  • Mikuni TM 24mm
  • Dellorto PHBL 20-26mm
Carburetors with 35mm / 36mm connection
  • Keihin PWK 19-30mm
  • Dellorto VHST 24-28mm
  • Dellorto VHSH 30mm
  • Dellorto PHBH 26-30mm
    Carburetors with 40mm connection
    • Keihin PWK 32-36mm
    • Mikuni TM / TMX 32-35mm

    Note: The connection diameter is measured at the carburetor. Rubber mounts are often slightly smaller because the rubber expands during installation.

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