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50cc Bike
Article no.: M3114268

Cylinder + CDI Forcemaster Malossi 290cc (d.74mm) Yamaha Xmax / X-City 250cc

650,00 €

incl. tax, plus shipping

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Cylinder + CDI Forcemaster Malossi 290cc (d.74mm) Yamaha X-Max / X-City 250cc, aluminium cylinder from Malossi, to give your maxi scooter a powerful boost. The kit consists of cylinder, piston and gaskets and the Force Master 2 CDI, a cylinder head is not included, so keep your original head.

The powerful sports cylinder is made of high-quality aluminium with a resistant Nikasil coated liner; it is joined here by a Force Master 2. The tuning CDI has 3 curves or maps (or 4 if you set everything to 0), with which you can significantly influence injection parameters. The injection quantity can be adjusted to fit your your riding style and your engine setup. Each of the curves can also be manually adjusted by +/- 20%, giving you plenty of room for tuning and optimizing.

The actual cylinder, which by the way is also available without CDI, is characterized by excellent Malossi workmanship and minimal tolerances. The piston is compact and light, but at the same time extremely robust and with low expansion at high temperatures.

Torque is quite great, pull is correspondingly strong, and top speed is increased as well. Without cylinder head!

For air-cooled Yamaha 250cc 4-stroke engines (H314E).

Technical data:

  • Displacement: 287,29ccm
  • Bore: 74mm
  • Stroke: 66,8mm
  • Piston pin: 17mm
  • Compression: 1:11
Questions about the product
Notes and Safety

How to Install a cylinder on a scooter, motorcycle or moped

The cylinder or cylinder kit is the heart of the engine on scooters, motorcycles and mopeds. It consists of a cylinder, a piston with piston ring(s), a cylinder head and gaskets needed for installation.

The service life of a cylinder depends on whether it has been fitted correctly.

Tuning Level: Sport

We categorize our products into different performance levels  Original, Sport, Racing and High End , so that our customers can choose the right parts for their setup. It is really important to combine parts that belong to the same tuning level, this is especially true for cylinders, crankshafts and exhausts.

The products listed under Sport yield better performance than Original parts. They may have technical differences, such as the use of higher quality materials, a larger displacement or a performance-enhancing design. They are suitable for everyday use and have a long service life.

Aluminium cylinders

Aluminium cylinders are more powerful than cast iron cylinders, but require more regular maintenance and must be combined with different components such as a reinforced crankshaft and a larger carburetor.

How to run in an aluminium cylinder?

Aluminium cylinders should be run in for about 200 kilometers , and you should use a fully synthetic engine oil.

Note: To ensure optimum performance and reliability, it is advisable to measure the squish clearance. Just have a look at our tutorial How to adjust squish clearance.

Technical details
Cylinder + CDI Forcemaster Malossi 290cc (d.74mm) Yamaha Xmax / X-City 250cc
Article no.M3114268
Weight0,10 kg
SeriesForce Master
Product typeCylinder kit
Tuning levelSport
Piston pin17 mm
Cylinder materialAluminium
Bore74 mm
Stroke67 mm
Conrod lengthStandard
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