Question about Troy Bilt 5.5hp Self Propelled Mower
For you to have found a mouse nest on top of the engine, then that tells me that it's been left idle for a long time. Like maybe as long as over the winter.
The 30 seconds is about the time it takes for the engine to run the carburetor dry. If left along for another while then that'll allow time for more gas to reach the carburetor and then run again until it repeats it's cycle.
You may have to remove the carburetor and give it a real good cleaning. No, i don't think the heat has damaged the valves because if it had, then the engine wouldn't start at all because you'd have little or no compression.
Look at the carburetor you may have had a dual problem there and one is not related to the other.
Hope this helps and good luck.
Posted on Oct 03, 2009
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Posted on Jan 02, 2017
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