had my mechanic look at my machine today and he replaced part #121-9100 sprocket assembly. Part was still under warrenty. It was mimicking a sloppy bearing and I was starting to feel a slight vibration in the machine that was not normal. Mechanic said that to date he had not seen that problem on any other machine. I was happy to see that it was not a spindle.
"our task must be to free ourselves..by widening our circle of compassion to embrace all living creatures and the whole of nature and it's beauty" ALBERT EINSTEIN
"non-violence leads to the highest ethics, which is the goal of all evolution. Until we stop harming all other livings beings, we are still savages. THOMAS EDISON