Maybe a better explanation of my situation will help. I bought a brand new John Deere LA120. After a few uses it would not start or I would get a click sound or it would just turn over once or twice then nothing. I thought it was the battery or an open ground causing the problem.
A newer high amp battery may not change anything. I carefully checked out all the wiring. Nothing. I asked a dealer. He said it was the valves out of alignment. I thought he was crazy. I checked with a second dealer and he said the same thing. He said they could adjust the valves but I would be back next year with the same problem.
His suggestion was to rotate the air intake counter clockwise that sat on top of the engine until I felt resistance then it should start. I rotated the air intake as he suggested and could feel the resistance and hear the cylinders and valves moving. Then it started right up. So that is how I have to start the thing every time.
Sometimes I have to turn the air intake clockwise for it to start. The air cleaner is the screen disc that sits on top of the engine and rotates when the engine is running.
Check your starter but also check the starter wires. Make sure any connections are clean and than reconnect them.
I have a John Deere but I believe the engines in both units have Briggs and Stratton engines. I also have the same proplem. Two JD dealers told me the fault is the Briggs and Stratton engine. Seems the values get out of alignment very easily and have to be reset. But one dealer told me to turn the air vent on top of the engine several times. I did that and the engine started.
Sometimes I have to turn the vent in the opposite direction. It is a pain but the only way to start the engine unless I take it to the dealer. Over time you would have to take it to the dealer a lot to have the valves reset. It is not the battery. Hope this is of some help.
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