Malossi Intake Manifold D 21/23 length 24 inclined for Minarelli horizontal

The Malossi Ø 21x23 inclined intake manifold is an essential component for Yamaha, MBK, and Minarelli vertical 2-stroke engines with a displacement of 50cc. This manifold serves as an access corridor for the air-fuel mixture into the engine through the reed valve.

The overall performance of an engine depends on various factors, including volumetric, thermodynamic, and mechanical efficiency. Volumetric efficiency indicates the ratio between the amount of mixture entering the combustion chamber and the engine's displacement.

The intake manifold plays a crucial role in volumetric efficiency as it must allow the passage of the mixture with minimal friction. To avoid loss of efficiency, it is important for the manifold to have smooth transitions and no sharp edges along the mixture's path.

In addition, the intake manifold acts as a reservoir for the fresh charge, allowing the mixture to compress against the reeds when the reed valve closes. This component has a specific RPM range in which it achieves maximum efficiency and is designed to support the carburetor and dampen vibrations transmitted from the crankcase to the carburetor.

Malossi intake manifolds are made with high-quality materials such as rubber and aluminum alloy. These manifolds have been tested and developed by the Malossi research department, both on the road and on race circuits. They feature a composite structure, with an aluminum insert embedded in a plastic material resistant to oils and fuels. This construction ensures significant rigidity in the mounting base to the crankcase and good elasticity of the manifold body.

SPECIFICATIONS

• Material: NBR
• Holes: Ø 6.7
• Conduit: Ø 21
• Inlet: Ø 23
• Total length: 24
• Carburetor application: Original PHVA 12-17.5, PHBG 15-21

COMPATIBILITY NOTES

Please note: The following notes refer only to the vehicles listed below. These vehicle lists may not represent the complete compatibility list for the product.

The manifold is compatible with the original air filter.

• APRILIA SCARABEO 100 2 stroke
• BENELLI K2 100 2 stroke
• ITALJET MILLENNIUM 100 2 stroke
• MBK BOOSTER 100 2 stroke
• MBK NITRO 100 2 stroke
• MBK OVETTO 100 2 stroke
• YAMAHA AEROX 100 2 stroke
• YAMAHA BW'S 100 2 stroke
• YAMAHA NEO'S 100 2 stroke