BGM 9 Port Sport 70cc Cylinder Kit for SYM Jet Basix / Jet4R / Jet X Sport / Shark 50

$329.00

Best Value Product!

BGM 9 Port Sport 70cc Cylinder Kit for SYM Jet Basix / Jet4R / Jet X Sport / Shark 50

The ideal budget 70cc kit! What makes this kit so good? Other than the price, the cylinder features a 9 port configuration (same port configuration as the famed Malossi MHR Replica)

Compared to the standard 50cc cylinder, a 70cc cylinder is also increased in size by 40% – applying the same rules of volume means all up this cylinder kit offers a significant increase in power. This kit also comes with with a 0-ring head gasket, so the head can be removed without requiring the replacement of the gasket.

Fear not – we have replacement pistons for this kit also! Click HERE to see the replacement piston kit.

We highly recommend also replacing the small end bearing with the installation of this kit if your scooter has more than 5000km prior to install. Click HERE to see the small end bearing to suit.

In Stock at Euro Warehouse (Ships in 8-12 days)

SKU: BGM9960 Category:

Description

BGM 9 Port Sport 70cc Cylinder Kit for SYM Jet Basix / Jet4R / Jet X Sport / Shark 50.

To the uninitiated – a 2 stroke engine makes power by drawing fresh fuel and air through the intake ports, and expelling exhaust gases out of the exhaust port. A standard port-map has a number of intake ports around the cylinder with one large exhaust port. A 9 port configuration features two additional ‘booster’ exhaust ports to the top left and right of the main exhaust port. Because the exhaust gas can be expelled more quickly, a higher volume can be expelled per cycle of the piston – which means that the intake ports can also be increased in size to allow a greater volume of fresh fuel and air in. More volume in, more volume out – That’s how you make more power.

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