OHC Subaru engine.
Run some carburetor cleaner through it first. Go to autozone, etc, and pick up some fuel system cleaner you can put directly in the tank and run it through.
SOURCE: Ryobi 3000 psi pressure washer detergent injector
Most detergent injectors work by the venturi system. That is that the detergent is drawn into the stream by the forward flow of the water thru a very narrow port after the water passes thru the pump. This system works best when the pressure at the tip of the wand is low. Trying using a very large tip to draw in and apply the detergent, then remove injector and rinse with high pressure. Not good for the pump but to apply soap reliably under high pressure the soap needs to be injected through the intake of the pump. enjoy
SOURCE: I have a 3000 PSI Honda pressure washer. The motor
Your nozzle could be plugged or partially plugged. Also, try running it with the high pressure hose taken off to flush the pump.
SOURCE: Karcher G 3000 BH Engine Pumping Problem
This may not be a motor problem. It sounds like your pump is not working properly and the motor is just following the pump. First thing to do is check for leaks in the pump, wand hose, gun etc. It may also be a blown water seal inside the pump.
SOURCE: I have a 3000 psi karcher pressure washer with
sounds like you need a seal and bladder rebuild < if you liver in a cold environmet for winters please dont forget to winterize your washres every year before winter
SOURCE: 1750 psi Electric Pressure Washer: My pressure washer is losing pressure and is pulsa...
I have d'same problem before. replace the head component with the 3 little cylinders,springs etc.. its a 1 piece part.
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