The unburned fuel is igniting inside the muffler. Let the engine run at idle for 30 seconds before turning the key off.
The new ride-on lawn tractor models will stop when it overheats or when the electricity is not constant. You can read more at www.consumersearch.com/lawn-tractors/reviews One of the best features on ride-on lawn tractors is a adjustable lever for the blade. However you will have to turn off the tractor in order to lower the blade in order to avoid stalling of the lawn tractor.
It might be overfueled but it also might be just that when you turn the key off the motor runs on a bit and puts fuel into the hot exhaust and it ignites it and makes it backfire.
To replace an axle on a HydroGear lawn tractor transmission, first, ensure the tractor is turned off and securely elevated. Remove the wheels and any necessary covers to access the axle assembly. Disconnect the old axle from the transmission, then insert the new axle, ensuring it is properly aligned. Finally, reattach any components and wheels, and test the transmission for proper functionality.
when it is turned off and cooled down
To install the gear pinion on a lawn tractor, first, ensure the tractor is turned off and the battery is disconnected for safety. Remove any necessary covers or housings to access the gear assembly, then align the new pinion with the shaft and secure it in place, typically using bolts or a retaining clip. Finally, reassemble any removed components and reconnect the battery before testing the operation. Always refer to the manufacturer’s manual for specific instructions related to your model.
check your wiring harnes to your starter. make sure it is not connected backwards
Because there is water in the fuel line. Drain the gas tank, fuel line and the carcuretor bowl. Then put new gas in it.
More than likely it needs to have the carburetor cleaned.
When you turn it off the igniton (spark) to the plug stops as the engine rolls to a stop unburnt fuel collects in the muffler and is ignited by glowing bits of deposits.
When turned to the "Off" position, it connects the ignition to the frame ground to turn off the ignition and therefore the spark (fire.)
If you are running at high rpms and turn the key off the unburned fuel will be pumped from the cylinders in the engine into the muffler. The muffler is still hot enough to ignite the unburned fuel.
It's old or stretched, it's probably time to replace with a new one