I have a John Deere 8410 lawn mower and the back left tire was just flat this morning. I put air into it, but it would only stay inflated for 30 minutes or so before going flat again. I’ve asked my neighbors for help and they suggested fixing it yourself, injecting stuff into it, etc. However when I researched online I found that it might be off the rim or have a hole in. If you have any further questions please don’t hesitate to ask
If it is off the rim, the basketball won’t reinflate.
I’d suggest looking for a leak underneath the tire first. To find it, remove the air from the tank, jack up the back of the mower and remove the rod which allows the wheels to move freely. Next take your garden hose and douse it with water as you rotate it.You will see a stream of bubbles coming from the leak. I would highly recommend not using whatever goo is inside the tire as it can be messy when it’s time for a tire change and does not always work.