I previously mentioned that I bought a "new" used Murray riding mower at a pretty good price at our local Fleet store. The original owner had them put in a brand-new engine and then never paid for it. So, I got it for about half the price of what the shop had into the repair job.
Anyways, little update, after only a few hours, the Nikki carburetor flooded out, drained a tankful of gas into the engine block, and put the mower into hydro-lock and the rider was unable to start or run. Bummer!

Of course, although the engine has a 2-year warranty, it does not cover the carburetor.
I talked to the head mechanic at the shop about options, and he just suggested I add a manual on/off valve inline the gas line. So, I dumped the engine oil (which was full of gas), blew out the gas in the spark plug hole, and put everything back together with a on/off value on the gas line.
Happy to report that the engine started right up and is working great. Only thing I have to do is to remember to manually turn off the gas valve when I'm done mowing just in case the carb floods again. I'm still very happy with the purchase, but it's disappointing that these new carbs can go bad in no time at all.

I'm not a mechanic, but I love it when I can fix things on my own and save a $100 shop repair bill. I can live with the on/off valve on the gas line. I have installed those valves on all my other riding mowers over the past few years. Just makes it so much easier to drain old gas and/or change out the fuel filter. This is the first time I have needed that shutoff valve for a flooding carb, but it's a cheaper fix than replacing the carb itself. I bought that 3 pack of valves about 6 years ago and it only cost me $5.00 at the time. I still had one valve left in the pack, so it did not even cost me anything this time.
I bought this rider mainly to tow behind my carts, as in the picture above. I load it up with all my gardening supplies and stuff when I work out in the gardens. Also, when I sift my chicken run compost, I hook up a Gorilla cart to the rider and take it wherever I need the compost. When I make a new hügelkultur raised garden bed, I load up a cart with heavy logs and drive it over to the raised beds. When I was younger, I just used a one-wheeled wheelbarrow. But now I'm all for saving my back and letting the riders pull the heavy carts.