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Hot!Honda Pressure washer backfire

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2018/11/13 12:48:17 (permalink)

Honda Pressure washer backfire

Hi folks
Last year I bought a Honda pressure washer from Northern Tool. It has a Honda GX 160 engine with a Comet pump. 3000 psi.
It starts and runs great everytime...but while using it and you let off the pressure, the engine backfires. I drain the gas when not using, empty the carb and has a new spark plug. Any suggestions?

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    Re: Honda Pressure washer backfire 2019/04/09 11:49:16 (permalink)
    it might be that the carburetor is running to rich. or it could be a bent valve. that's what I would guess.
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    Re: Honda Pressure washer backfire 2019/04/22 05:30:02 (permalink)
    I’m having the same issue with my brand new Honda powered washer. It backfires when I let off the spray gun. It’s worth adding the manual states the engine takes 0.6L and that’s exactly the amount they supply. However, the machine pours out oil when I check the dipstick on a level surface. I don’t think excess oil would cause a backfire but I wanted to mention that. I’ve let mine drain out the excess oil and that seems to have reduced the number of backfires. I’m still not sure though. Thoughts?
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