DG, thanks, yes, old threads= current help for me :) . I did spin the blades by hand last night (without the belt attached) and did notice one of them spun much 'rougher' then the other.
Vikki, I have this exact issue with my Craftsman DYT4000 42" mower minus the sparks. I noticed while mowing my front yard I could smell burning rubber. I looked under and saw the pulley (attached to...