A. Could be the armature or the key switch. There should be a wire to unplug that will isolate the engine from the frame to begin to troubleshoot.
B. Ive found that the starter wire gets loose after use. Open the hood. Look for the black colored cylinder about 3 inches round and 9 inches high next to the motor. It will have a gear sprocket out of the top that turns the motor when power from the ignition gets to it. Check the looseness of the wires bolted to it and tighten them down. This worked for me after trouble shooting. Also make sure you did not blow any of the fuses.
how to install a spring clutch on a murray mower
what size belt do i need with a murray riding lawn mower that is a 12.5hp. 40"
A Murray riding lawnmower owners manual can be obtained from most Murray riding lawnmower dealerships. You can find the owners manual at most local libraries.
30W for summer
The spark plug gap for a Murray 12 hp riding lawn mower should be set at .020 inches. This is equal to .5 mm.
.20
According to Youtube
30 hd oil
Any inline fuel filter will work.
I have Murray 42" cut riding mower that the belt came off. How do I put the belt back on?
It is important to adjust the carb on your 1996 Murray 12 HP riding lawn mower from time to time. You need to start with a warm engine, and adjust the screws to make them tight.
If you raise the hood of the mower up it should have it on the yellow detailed sticker of mower. Normally 10w30