:welcome:!! And cool mower! those older briggs engines are pretty bulletproof. clean the carb, do an oil change, and put some fresh gas AND BUY SOME SEAFOAM FOR IT! works great. also clean the spark plugs and when you take the plug out, pour a little seafom in the socket. it will free alot of stuff up like the pistons. just get it running and driving before you mess with pulleys and junk.