Intake manifold - for reed valve -POLINI 3-stud reed valve- Vespa PK XL - CS=Ø34mm (carburetors Ø28-30mm - PHBH, VHSH, PWK28, TMX30, Smartcarb 26-28)

Polini diaphragm intake manifold as replacement for the original rotary vane intake manifold.
Supplied with diaphragm and an intake rubber with Ø34mm connection diameter.
Therefore suitable for all carburettors with this connection dimension (e.g. Keihin PWK, Polini 24-30mm, Dell'Orto VHST24-28mm, PHBH28-30mm, Mikuni TMX27).
Can also be used on rotated mounted cylinders.
The intake manifold is designed to allow the exhaust to pass with sufficient clearance.
To use the intake manifold in a useful way, the rotary vane inlet should be modified (mill the housing, use the corresponding crankshaft for diaphragm inlet).

For the assembly modifications at the frame are necessary (carburettor passage in the frame must be increased).

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