Bob
Oil changes are critical,Briggs recommends every 20-25 hours of operation.The gov. are set at 3600rpm for max torq on the power curve.I spoke to Briggs this a m and as I suspected they dont advise slowing it down under loads and I specfically asked about the pumps.Seashores if you need more info let me know,be glad to help.
Tom

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Some days you get the dog,and some days he gets you.Every dog has his day,and sometimes he has two!