Apologies if this is covered elsewhere, it appears Polini have released several mods for the Thor200- reed valve, gaskets etc.
They seem critical to the life of the motor, and I can't see why they are not essential recall items, it wouldn't be acceptable in a car let alone an aircraft. Although I know it's a small industry and we are lucky to have a choice etc.
Has anyone had major issues with their Polini? Has anyone done the mods? If so have they been effective and how hard are they to do?