I bought this used and have been splitting wood with it for 18 years I put a new rod and piston and rings in it years ago Cleaned it up and painted it put the right gas tank on it all I ever had to do it. Starts with two pulls never touched the carb really. Well we were splitting wood with us recently certainly the RPMs went through the roof I quickly shut it off started it up again and same thing no governor control it seems. I can run it if I hold the butterfly and place. I was told the governor Gere may be broken but I am not familiar with this at all. I figured somewhere inside the crank case there’s a problem with the governor. If anyone has some helpful knowledgeable advice I would much appreciate it! Thank you!