So, this all began 2 years ago when this Craftsman mower was given to me by a friend. Worked fine, but I didn't yet have my shed build and left it out during a rainstorm. I went to start it afterwards and heard a loud pop and the carb then looked like it exploded with a big puff of white mist, and wouldn't start. I then rebuilt and re-rebuilt the carb over a 6 mos. period to get it to work with no avail. I did eventually get it to run, but the rpms were way too high, so knew something was still wrong. I didn't buy a new carb at the time since Tecumseh carbs are like $85.
Recently I saw on ebay they had new aftermarket carbs same as Tecumseh for $20, so I said why not and bought one. I installed everything, and same issue, starts but revs way too high and fuel even starts to pour out the end of the fuel hose where it attaches to carb, like it's being force flooded or something. If you move the throttle manually it will calm down into a normal RPM zone, but the second you let go it's right back to crazy high rpms. I've heard these are symptoms of the governor not doing it's job, but have never delved this deep into a lawn mower repair so don't know what to look for.
I started taking the whole thing apart today. I got to the flywheel but couldn't get it off. Took the big bolt off holding it on, which I assume is the only thing holding it, but the thing just wouldn't come off. Also took that little plate off on the side as well as the front of the crankcase to get a good look at the valves. Maybe someone here can shed some insight as to what might be wrong, and perhaps even how to proceed to check if rest of engine is working properly. Here are all the pics:
This is the way I had the linkage: (pic sent to me from someone awhile back):
Here are my pics:
Recently I saw on ebay they had new aftermarket carbs same as Tecumseh for $20, so I said why not and bought one. I installed everything, and same issue, starts but revs way too high and fuel even starts to pour out the end of the fuel hose where it attaches to carb, like it's being force flooded or something. If you move the throttle manually it will calm down into a normal RPM zone, but the second you let go it's right back to crazy high rpms. I've heard these are symptoms of the governor not doing it's job, but have never delved this deep into a lawn mower repair so don't know what to look for.
I started taking the whole thing apart today. I got to the flywheel but couldn't get it off. Took the big bolt off holding it on, which I assume is the only thing holding it, but the thing just wouldn't come off. Also took that little plate off on the side as well as the front of the crankcase to get a good look at the valves. Maybe someone here can shed some insight as to what might be wrong, and perhaps even how to proceed to check if rest of engine is working properly. Here are all the pics:
This is the way I had the linkage: (pic sent to me from someone awhile back):
Here are my pics:
