Originally Posted by VS_Rody

When pushing the engines to their maximum we more easily also pass their limits.

Even though the finish of the liner and piston of the OS engines are excellent we still can encounter some problems which also the other manufucturers are facing sometimes, so not only OS...

I do not have technical insight in the manufacturings process of OS and the materials they use but I know it is a very delicate issue. The weird thing is that this does not happen on all the engines but only a very small qty which of course always comes out in front compared to when there are no problems.

My experience is that the fuel used is very important and also the OS on-road engines are more delicate on their working temperatures and you should never push too much the engine in the first few laps.

The new main-needle with their 2 o-rings have improved the stability of the carburetor setting(included in the R2106) and the extra lubrification groove on the piston should help, now the racing season is over here in France but I am sure these improvements go in the right direction.