Hi, I'm new here and I thought I'd ask about experiences with accessory cylinder sets for the stihl 660, which I bought broken, I haven't received the saw yet, so I haven't been able to disassemble and check the extent of the damage. , I'm from Finland and in Germany there would be a shop called sägenspezi but there are 4 different cylinder sets for that saw model so are there any experiences with these?, I know that the parts in question are probably made in China but I built one 026 model with the cylinder of that shop and at least it worked. Bigger saws are new to me. This saw in question would be used to split wood, so I need more torque from the engine than the revolutions, gaskets and possibly the crankshaft bearings, I was thinking of putting them as oem parts. I installed caber tires on the 026 I made, but I don't know where to find them for this saw, if the original cylinder can be salvaged, I'll use it. I would be grateful if someone could find me a workshop manual for the stihl ms660 model. Sorry for my bad English, I have to use a translator.