How to install pistonrings on a twostroke

Here I mount piston rings on a piston to a Speedfight 100cc and 50cc.
Surf to http://www.twostroke.se if you need new piston

Some hints, tricks and other things you should know at piston replacement:
Things to consider when installing an aftermarket Piston, is that you very carefully to make sure it is identical with the piston as it is ordered in the dimensions of the piston pin, both upwards and downwards, this so that it can not turn the crank, push or hit the top when it rotates in the cylinder.
Compare with your old piston before installation.

One must also carefully check every holes on the piston rings ports so that they do not go over any channel in the cylinder, then the chances are that the ruling in this case, sticking and breakage, leading to the cutting cylinder. The arrow on the piston is at assembly towards the exhaust port.

Choosing the piston:
B-piston recommend it for all used cylinders.
A piston for new cylinders or cylinders with new nicasil.
A B piston is slightly larger than an A piston in order to compensate for wear. C piston is greater than B-piston etc..

Here you can see when I change the cylinder
   • HasSse - monterar Airsal 70cc AC cyli...