Chainsaw Repair

your pretty thick on the piston skirts , that causes seizing cause the thicker grows more in size than a thinner skirt . I keep mine as thin as the stock piston from the factory and have never seized a piston but I never put a piston in without coating the hell out of it either and pay very close attection on piston clearance , A couple 1/10's of a thou makes a huge difference , If its a race motor run it abit loose and if on gas run it looser again. As far as Wiseco goes you need to design your piston and it is not to be the same as anyone elses but Wiseco is pretty much just like a Hooker on the street corner , if you got the money they will build you anything