I HAVE A TROY BILT (PONY 2006 MODEL) THAT WILL NOT START, THE ENGINE ACTS LIKE A DEAD OR LOW BATTERY, I HAVE REPLACED WITH NEW, THE POWER LEAD FROM THE BATTERY TO THE STARTER GETS HOT ALONG WITH THE STARTER, COULD THIS BE A STARTER PROBLEM OR IS THE VALVESOUT OF ADJUSTMENT.
The compression relief valve is not working. Pushing the engine past top dead center and turning the key works after a fashion. Keep the battery fully charged. This is a design/engineering fault in B&S engines which they cannot fix. It is in all of their engines. Most do not malfunction but those that do, do it all the time. I have had the compression relief valve replaced and the valve settings set to allow the valve to function (it uses the exhaust valve by holding it partially open while starting) but it still does not work properly.
Skip the below portion if you don't want to hear a negative view of B&S engines.
The engine problem resolved itself today (12-10-10) when it threw its rod into the cylinder wall. B&S engines power a huge number of the riding mowers in the US. It is difficult to escape them when buying a mower. Use it on more than a postage stamp yard and B&S will claim you abused it.
Try to turn the flywheel on the top of the engine if you can. If you can move it just a little, the valve shifts and the engine will start. You will need to do do this each time you want to start it. I found it to be a short term work around. It does prove that the compression valve is bad. B&S engines also have a problem with their counterweights. When the connection fails, the weight causes the engine to overrev and throws the weight into the engine sidewall. Damage is not repairable w/o replacing the base of the engine, etc Every lesson I learned about B&S engines, I paid for.....
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