honda gx340


Old 09-06-04, 03:01 PM
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honda gx340

i have a 1995 honda em5000 generator. The generator has a gx340 motor. Ever since the day I bought it, it has made a slight knocking/pinging noise when I put anything more than a 50% load on it. I took it back to the dealership and they said the noise was normal. I have heard other generators just like mine that don't knock under load. I have tried different grades of gas, had the valves adjusted, put new plugs in it and none of it made a difference. Any ways I wonder if any body here would have any idea what would cause it. Thanks in advance.
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Old 09-07-04, 03:18 PM
puey61's Avatar
Join Date: Apr 2004
Location: Upstate New York
Posts: 3,224
It would be near impossible to diagnose your trouble (if any exists) without being able to hear the thing run. I'd go to another shop and get a second opinion. Possible areas of concern though are: Carbon build-up in the combustion chamber; Ignition timing; Sloppy connecting rod to crank tolerance; Sloppy generator bearings. Good luck and let us know.

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