Piston Airsal MBK 51 LC (for Airsal aluminium)
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Description
Piston Airsal MBK 51 LC.
Airsal is a Spanish brand that is known in the two-wheeler community for top cylinder kits at unbeatable value for money.
If the cylinder is no longer working properly, it is not necessary to replace the entire cylinder, in many cases it is enough to replace the piston including piston pin, piston rings and clips. In racing engines, it is extremely important to keep to the revision times, as the piston has very little piston clearance and is equipped with a very fine piston ring.
Aluminum is used for high quality cylinders. The raceway is coated with an extremely hard and resistant coating. The advantages of an aluminum cylinder are better heat dissipation and low weight, in addition, the tolerances of the piston clearance are kept low by the material, which leads to more power. If the piston rubs (slightly), in many cases it is not necessary to replace the entire cylinder but only the piston, because the coating is very resistant.
Technical details:
- Material: Aluminum
- Displacement: 50cc
- Bore: 39 mm
- Stroke: Original
- Piston pin: 13 mm
- Connecting rod: Original
- Homologation: ECE homologation
When to replace the piston?
To find out when the piston on your motorcycle, scooter or moped needs to be replaced, it's best to check your bike's manual. You can also keep an eye out for certain symptoms such as loss of compression, loss of power or oil consumption (only for a four-stroke piston).
Extending Piston life
To extend the life of the piston and reduce cylinder wear, it is recommended that you replace the piston rings on an alternating basis. This method maximizes piston life and improves engine performance.
It is important that you replace cylinder gaskets and piston circlips each time you disassemble the cylinder and piston. Failure to do so can result in oil leaks and engine damage.
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.