Intake manifold - for reed valve -POLINI 2-stud reed valve- Vespa V50 - Ø=16/16mm Dellorto SHB

Suction port with integrated diaphragm control. This makes the standard rotary vane inlet, which is controlled by the cutouts in the crankshaft, superfluous.
This kit with original 16mm carburettor cross section is optimal to use original or near-production 50-90cm³ engines with defective rotary vane inlet.

TIP: If the intake area around the crankshaft is milled out (instructions enclosed) a small increase in power and a widening of the speed band can be expected. If the connecting piece is mounted without machining the engine housing, the performance will be approximately on the same level as before.

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