Have repaired two B & S engine with the symptoms you describe. The compression release built into the camshaft was broken. This prevents compression from bleeding off when starting. You would need a much larger starter and battery to overcome full compression while starting the engine. Remove the engine from the mower and remove the sump (bottom) only; replace the sump gasket and oil seal plus purchase a new camshaft. Should be in the neighborhood of $50.00. Set valves at .004" and get back to work!
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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