Cylinder -PINASCO 190 ccm 3 channel aluminum Magny Cours Ø=63mm, s=60mm- Vespa PX125, PX150, Cosa125, Cosa150, LML Star 125/150, Stella 125/150

Pinasco 190cc Magny Cours cylinder kit for Vespa PX 125-150

With the Magny Cours (otherwise also incorrectly referred to as the Granturismo), Pinasco is launching a further developed version of the well-known standard 177'er on the market. The cylinder layout has remained the same in terms of the channels. The most obvious feature is the now finally sensible piston with narrow rings and the cylinder head with central combustion chamber and spark plug.

The Magny Cours is now offered in a version for 57 mm stroke (177cc) and 60 mm long-stroke shaft (187 = 190cc). The cylinder itself is the same, the long-stroke version comes with a 1.5 mm thick foot gasket spacer for stroke compensation (otherwise no additional foot gasket).

To ensure that the control angles, which are so important for power delivery, work, these have been modified compared to the old version. The Magny Cours has the following steering angles:

SC TIP
From our point of view (for a powerful touring engine), the 60 mm 190cc version would also look much better with a stroke compensation at the head. This would make the timing angles much better suited to the cylinder concept:

Unfortunately, the compensation on the head is difficult to implement, as Pinasco centers the head on the upper sealing surface by means of a groove. With a spacer, the centering would be lost and the necessary spacer would only have to consist of a very thin ring. Hence Pinasco's decision in favor of a foot spacer. A facing of the upper sealing surface and the use of a conventional 1.5 mm head spacer would make the control angles better suited to the cylinder and a box exhaust.

In terms of quality, there is nothing to criticize about the kit, even though it is now manufactured in Asia. Only the centrally positioned spark plug can cause space problems with the side cover and the spark plug connector. We strongly recommend checking the clearance (with the shock absorber removed from the engine) before the first test drive to prevent damage to the side cover.

(US)