Hello folks.... Scooter won't run, walk, or crawl! I have replaced carb, fuel lines, fuel filter, vacuum lines, cleaned the intake filter and said plenty of four letter (as well as five letter) words. Scooter still no run! I thinking it's valve adjusting time. That said.... Can anyone direct me to a PDF or GOOD you tube video that describes the procedure for a valve adjustment on a MC-54-250 engine? THANKS!!!!