Pressure washer stops running after 1 minute will restart but shuts back off
SOURCE: shut off while pressure washing
Hi and welcome to FixYa. I am Kelly
Most likely the JET orfice in the bottom of the carburator venturi throat is clogged. I am assuming you have a 5.5 Hp Honda motor but even if it is not the procedure is the same.
1. Turn off the fuel supply selector
2. Remove the float bowl by taking out the mounting hardawre. The nut / cap screw on the very bottom of the float bowl has holes in it. Make sure they are clean.
3. Remove the "Brass" JET from the bottom venturi tube and clean the orifice. You should see a pinhole of light through the hole when it is clean.
4. Remove the venturi tube just above the jet that is also brass. The throat of the venturi tube and the 2 side holes must be clear.
5. Use something like a spray paint can lid to catch fuel and then briefly turn on the fuel supply. The fuel should flow at a good rate though the float needle and seat assy. GENTLY lift the float to the raised positon (level) and confirm fuel stops. Then loet it lower again noting fuel flow. TURN OFF THE FUEL selector. If you do not get any fuel at this point check the bottom of the fuel tank for obstructions at the tank outlet hole. Once you have verified fuel flow.
6. Reinstall the venturi tube
7. Reinstall the jet
8. Reinstall the float bowl making sure upper and lower gaskets are in place.
9. Turn on the fuel and wait one minute (check for leaks)
10. Start the unit.....
(Complete)
Thanks for using FixYa.
Kelly
SOURCE: Northstar PW shuts off hot if washer is moved. Honda engine
Being petrol driven, it may have a mercury kill switch which puts a ground on the ignition circuit stopping the engine if you move it. Perhaps for safety in case you overturn the unit somehow.
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