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Starts and runs fine, except when I pull the trigger

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stevez
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2020/07/29 07:41:01 (permalink)
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Starts and runs fine, except when I pull the trigger

I have a Homelite powerwasher with a Honda engine.  It starts on first pull and will Idle fine.  But when I pull the trigger it works for 1-2 minutes with good pressure and then the engine shuts down.  Sometimes with a back fire.  Any ideas of what the problem could be?  Thanks in advance.
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    humblerb
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    Re: Starts and runs fine, except when I pull the trigger 2020/07/29 13:53:34 (permalink)
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    Check my story below regarding the Ryobi/Honda. 
    Mine wouldn't die, but really powered down when the trigger was pulled.
    The unloader and a throttle adjustment fixed mine.
    I'm fairly good with engines, but fairly new to pressure washer repairs.
    Don't know if this will help you or not.
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    pattyson
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    Re: Starts and runs fine, except when I pull the trigger 2020/07/30 20:03:20 (permalink)
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    Low oil?  I had one that would run for about 6-7 seconds then shut off.  I topped off the oil, same thing.... I disconnected the oil sensor and it works fine.  So I had bad sensor.
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    stevez
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    Re: Starts and runs fine, except when I pull the trigger 2020/07/31 15:54:55 (permalink)
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    Thanks for replies.  I had changed the oil, and level seems find.  It doesn't seem to have an issue with power, there's no hesitation when I pull the trigger.  It does not stall until a couple minutes of use, it does without sputtering or straining, often with backfire.  I'm not much of a small engines person, but wondering if the pump could be causing the engine to suddenly stall. 
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    humblerb
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    Re: Starts and runs fine, except when I pull the trigger 2020/07/31 17:33:44 (permalink)
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    As I mentioned, I am fairly new to working on pressure washers.
    Just thinking logically, it doesn't make sense that it would work OK for a couple of minutes and then just die.
    Does it restart right away after it dies?
    Have you had it a while or did it do this since new?
    If it is not newer, maybe a spark plug (and plug gap)?
    It could be an adjustment of the throttle (might be the cause for the backfire?).
    Should be a simple fix. One thing I've learned is, if it runs at all, it can usually be brought back.
    Maybe someone with a little more knowledge than me will chime in soon.
    Good luck.
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