( ? 63,0mm, cast iron, 6 ports, stroke 57mm, 2 piston ring(s), outlet 2-parts, with cylinder head, SPORT-TUNING, high-performance & roadworthy )
( Vespa 125 GTR 2?/TS /150 Sprint 2?/V/Super 2? /PX125-150/PE/Lusso/Cosa for LML Star 125-150 2T/Deluxe )
The cylinder has a bore of 63 mm with a 178..
The fuel supply of the Vespa Largeframe models is due to the small difference in height between the tank and the carburetor float chamber level still somewhat problematic.
A key choke point in the fuel flow is of course the fuel tap. The original case has a flow rate of nearly 300ml/min. This would..