I have an old Green Thumb, 5 hp tiller made by Briggs and Stratton. I have rebuilt the carburetor, and it starts and runs well. However, the tines don't move. I am guessing it is the chain or one (or both) of the sprockets. However, I can't seem to figure out how to get into the area to fix or replace the problem. I have pictures of the tiller together. Does anyone have any ideas?

Thanks,

Eric

Garden