Description
Polini racing cylinder 183cc Vespa 125 3V
Polini offers a big bore aluminum cylinder for Vespa 125 / 150 with 3V LEM engine, with 61mm bore for a displacement increase to 182cc.
This cylinder kit fits perfectly on the original crankcases without having to modify anything. You can continue using the original cylinder head.
Technical Specifications Polini cylinder kit 183cc Vespa Primavera:
- Aluminum cylinder wird hard chrome liner
- Displacement: 182cc
- Stroke: 58.6mm
- Compression ratio: 11.2:1
- Cast piston with chrome-plated piston rings
ATTENTION: For fuel injection models, you must use the ECU module (CDI) suitable for your model:
Pro tip: To get the best out of this kit, you should adjust the CVT weights. We also recommend the use of a sports CVT and a tuning exhaust to exploit the full potential of this cylinder.
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.