20 Most Recent Northstar Pressure Washer 3000 PSI - Page 2 Questions & Answers

Could be low water pressure I have found.Also, I purchased a can of "stuff" at Lowes today which allows you to circulate a liquid substance which lubricates the pressure pump....the pump could be frozen up...I have a rotating nozzle which I bought...and it had frozen up...this stuff works

The pump might be binding against the motor, causing the pump to overheat and temporarilly "seize up" and shut the engine off.
After cooling down for a brief period (5~10 mins) the engine can usually be re-started, but the overheating problem will keep coming back.

This happens when the pump either wasn't seated against the engine properly during it's initial instalation, or the pump housing wasn't machined properly and the PTO shaft is trying to drive the pump at a slight angle = excessive friction = overheating.

Try this:
1) Loosen the bolts that mount the pump to the engine just enough so that the pump can be wiggled slightly.
2) With the engine power switch in the "OFF" position, slowly pull the recoil starter rope so that the engine / pump completes about two revolutions. This helps to align the pump surface with the engine.
3) Lightly snug the pump mounting bolts in a criss-cross pattern, then slowly pull the recoil starter rope again to ensure that the pump isn't binding.
4) Finish tightening the pump mounting bolts in the criss-cross pattern (approx. 21 foot pounds torque).

The entire process should take you roughly about 10 mins from start to finish.

If this doesn't remedy your problem, then try running the engine for 20 mins with the pump COMPLETELY removed so as to isolate the components.

Remove the cage and see if the spring has jammed.

do you have spark?try starting fluid that will tell you if its a fuel problem

whenever i had that problem there was insufficient water pressure from the house and the pressure washer would run like ****, or did you try to adjust the pressure regulater to get more pressure

Your problem is going to be with the brass fitting with the spring that you have discribed. This fitting is called an unloader valve, this valve is designed to by-pass the pressure that the pump has built up so you don't damage the pump when you release the trigger. There should be a nut on the end of this valve try turning it in some if this doesn't work try turning it out. It is usually set at the factory but sometimes they either don't get set or they are bad. You also could try to remove and clean. re-install with a light coat of white lithium grease. Hope this helps, let me know how you make out.

You will need to remove the carburetor and clean. Be sure to clean the high speed jet. This jet is the bolt that holds the fuel bowl on. Remove and clean the small holes in the sides of bolt. You will need a small piece of wire or bread tie just remove the outer covering and run this through the holes. Some have a hole in the bottom and smaller hole in the threads towards the top. Clean with carburetor cleaner and blow with compressed air. Try cleaning the jet first and if this doesn't work then clean and rebuild entire carb. Hope this helps.

Hi, the carby needs to be disassembled and all jets blown out. Regards Phil.