ST824. Used it yesterday in the gear it is stuck in and it worked great. Didn't clog up at all like my 68' and '73. Im guessing this one is late 80s early 90s needs a paint job... bad. Whole front looks like rust but inside the bucket is fine. I'm guessing the rod that the friction disk sits on and moves on is rusted and I just need to scrape it off and grease it. Going to give it an oil change and grease all the points I can find on it. Going to do the same with my 73 8 hp also but the only thing wrong with that is low oil. I have a 1974 6 hp parts machine laying around and it has an electric start on it, this new one doesn't which I was surprised to see. Can I switch it over, or because it's a smaller engine I need a bigger one? Going to the shop now to try greasing the rod and write down the serial numbers so I can find out what year it is. Try to get pictures of all my machines as well.