I did a full rebuild with all husqvarna parts piston, jug, factory carb wich was not cheap all new crank seals and gaskets and grey silicone for assembly the same as I’ve done on many saws but this one is kinda puzzling me I can pull it twice and it starts and runs grate until it goes to cutting then it goes to half power my thought was a coil was getting hot and misfiring cutting the motor power in half just wondering if anyone may have had the same kind of issues