Re: Ted Williams 7.5 project
you have a 1973 AV-817 tecumseh powerhead based on the numbers you have provided, the first thing to do is a spark and compression test if you have the proper equipment, you should have at least 100 psi and a bright blue spark. if you don't have this equipment then simply remove the spark plug replace with an rj14yc gap .030, prime the cylinder with fresh 2-stroke mix 24-1 ratio, replace plug , give it a couple pulls, the unit should pop for you if you have spark and compression. after you have determined that you can then proceed to the next steps. usually a good cleaning of the carb and inspection for any bad parts, the parts are all obtainable for the carb at any small engine repair shop as these are all tecumseh parts in the carb, a standard rebuild kit will contain most parts for the carb, standard settings for both high and idle speed needles are one turn out from seated position, "seated position refers to screwing needle all the way in until tight do not overtighten as you will ruin the carb" the high speed needle on the bottom of the carb when rebuilding is good to back way out of the bowl retainer nut to not damage this upon installation. good luck and welcome to iboats. i hope this helps you get going.
