Craftsman 26hp 48' tractor
My tractor bogs down and ies when I engage the blades. I have replaced 1 pulley, both belts,blades, 1 spring,new plugs, greased the tractor and checked the fuse. On its' own, it runs fine. I checked for obstructions before putting the deck back in place. My tractor is about 5 years old. Model #917.276080. I don't really want to put it out of my misery but I am running out of options.