Having problems with your Briggs & Stratton Power Products 1539 Pressure Washer ?

When I release the trigger it "idles" fine, but when I re-engage

\015 The trigger it does not go back into the high pressure spray mode. I get a very weak stream.\015

Answers :

I have seen this problem alot and it can normally be rectified by clean out your unloader/bypass valve the orings on this valve get damaged as jerr said by leaving hoses and trigger pressurised, the easiest way to test if it is a faulty unloader valve is to do as you say it does and when it is on its weak stream turn your nozzle to detergent or low pressure mode then back to high pressure it should kick the pump back in...
\015\012If you do not have low pressure(chemical applicator) on your nozzle you may be able to remove the front half of your lance to achive the same result...
\015\012Kind Regards
Repair Help & Product Troubleshooting for Briggs & Stratton Power Products 1539 Pressure Washer

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When I release the trigger it "idles" fine, but when I re-engage

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