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I have a small 850w (max) 2 stroke generator. It starts fine but when a 500w loat is plugged in, the generator revs rise up and down...rising then falling and hence the load (a floodlight) goes dim\then bright

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Bad voltage regulator most likely, that's a pretty small generator and a 500 watt load may cause it to work too hard, but it shouldn't vary that much in voltage

Posted on Mar 12, 2011

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