Intake manifold -MRP diaphragm SHORTY- Vespa Largeframe PX, Rally, Sprint, Cosa, T5 125cc - Øi=30mm - AW=Ø34mm (carburetor Ø28-30mm - PHBH, VHSH, PWK28, TMX30, Smartcarb 26-28)

MRP diaphragm intake manifold SHORTY for Vespa PX, T5 - for engines with short sealing surface

The rotary valve control of the Largeframe Vespa models (starting from the VNA models around 1962) up to today's PX is as clever as it is well thought-out.
On the 200cc engines, whose rotary valve is wider than that of the 125cc models, performance of over 30 hp is now regularly conjured up with a good power band. We offer flow-optimized MRP rotary valve intake manifolds to match.

If this is not enough power for you, you will have to convert to a diaphragm intake. This allows the former rotary valve intake to be enlarged without having to take its sealing effect into consideration. The diaphragm integrated in the new intake manifold fulfills the throttle control. A carburetor with a cross-section of over 30 mm can therefore be used.

The diaphragm intake manifolds manufactured by MRP in Germany are designed for use with the powerful diaphragm type of the Yamaha RD350LC YPVS. The intake manifolds are available with a stainless steel tube or a flat top part CNC machined from aluminum. The quality, fit and possible performance are worth every penny.

A big plus point of the MRP pipes is that they require neither an adapter plate nor the motor housing has to be welded on. Suitable diaphragms are available from BGM, V-Force or directly from Yamaha. Racing product without road approval. However, the intake can be registered with an individual TÜV approval.

Attention: The nozzle only fits on engines with carburetor sealing surfaces with a length of at least 70 mm measured between the carburetor stud holes in the direction of travel (see also downloads).