to start my pressure washer, I squeeze the trigger, turn on the water, then turn on the unit itself. It runs until I let go of the trigger, then it will not kick on again. I took it apart and found that the small shaft (maybe part of the venturi?) doesn't move to engage/disengage the micro switch (#5) If I remove #7 and lightly tap on the shaft, it starts to move freely again. I put it back together, and it works as long as I use the start procedure above and do not let go of the trigger. If I let go of the trigger, I have to take it apart and free up that little shaft again. Can you tell me if the venturi might be bad? If there's a good chance that is the problem, how does the venturi come out of the housing? I am washing 250 feet of privacy fence, and I've had to take the pressure washer apart 5 times to get this far. Please help!? Thanks for your time. Mike

This is the exploded view I was looking at: mastertoolrepair.com/electric-pressure-w...1030864.html?aq=true

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