Intake manifold - for reed valve -POLINI 2-stud reed valve- Vespa PK50 S - Ø=16/16mm Dellorto SHB

Intake manifold with integrated diaphragm control. This makes the standard rotary vane inlet, which is controlled by the cut-outs in the crankshaft, superfluous.
This kit with original 16mm carburettor cross section is optimal for the further use of 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 range 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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