ok, so I just finished changing the belt out. Mower now has NO problems going up hills! And, added benefit that I also know the transmission oil isn't sludgy and disgusting. Good learning experience!
Now I have to figure out what part it was that fell off the mower last time out
I don't see it anywhere on the parts list, so if you know what this is - let me know! (assuming engine somewhere since it was hot A.F. when I picked it up)