Question about Honda Karcher G4000RH Pressure Washer

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My honda 4000 psi pressure washer will not release water to the sprayer, and some times the pull cord can be difficult to pull. Is there something i can do to solve this issue?

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6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 83 Answers

SOURCE: honda pressure washer cuts out when lance trigger released.

You most likely need to set your valve clearances. If it is hard to pull over or the recoil snaps back after starting your valves need to be set for sure. This may not be the entire problem but it is a good start. Also change the spark plug, a bad plug will cause odd problems and is too cheap not to eliminate as a source. In addition check your fuel, pour a little out into a white container (I like spray paint can caps for this) and look at the color. If it is yellow to orange it is bad. You can pour it into you car, the car electronic sensors will compinsate for it quality but a small engine can't. Use a NGK BP6ES or BPR6ES plug.
You need:
Feeler gages
10mm open end wrench
14mm open end wrench
1 long shaft screw driver or rod
1 spark plug socket and ratchet

Remove the spark plug and the valve cover. Pull the recoil over slowly until the intake valve opens (intake is closes to the carb and it will go down when it opens). Now put your long screwdrive down the spark plug hole. Slow pull the engine over until the screwdriver handle is at it highest point, this is top dead center. It may take a few attempts. Now check your valve clearance between the rockers and the top of the valve. The intake should be .006 and the exhaust .008, both can be +/- .001. To adjust: hold the large nut with the 14mm then loosen the small one with the 10mm. Lefty loosey. Now turn your large nut until you get the correct setting and then tighten the small one the lock it in. It may take a few attempts and alway reverify your setting after you lock it down. Once done, find top dead center again and reverify. Now your valves are set.

Posted on Mar 31, 2009

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  • 10 Answers

SOURCE: pressure washer stalls out when wand nozzle is released

common for not starting unless trigger engaged as you are turning the pump as well as engine creating pressure,as for stalling pump has unloader valve which is probably in need of grease(use good silicone grease)this allows water to ciculate when trigger released.

Posted on Apr 20, 2009

  • 3600 Answers

SOURCE: honda gx270 pressure washer. water is not coming out strong.

did you check the inline screen for dirt?

Posted on May 24, 2009

motorhead427
  • 24 Answers

SOURCE: Pull cord is loose on my Honda 2500 Pressure

complete pull rope units are available for appx $23

Posted on May 30, 2009

  • 174 Answers

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.

Posted on Jun 05, 2009

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1 Answer

Cant pull start the pressure washer


Turn water off to the pressure washer, release pressure by applying hand pressure to sprayer. After water pressure is released, turn water back on (should not have motor running without water.) then try to pull start.

Jun 18, 2011 | Honda Karcher G2400HH-R Pressure Washer

1 Answer

I lost my manual ,how to start the pressure washer


Check gas and oil. With water OFF, pull out choke on washer. Pull the start cord until it starts. Let run for about 20 seconds. Push in choke. Turn on water. Bleed wand line. Insert desired tip. You should be good to go now.

Oct 08, 2010 | Honda Pressure Washer PSI 3000

1 Answer

I recently purchased a northstar 4000 psi pressure washer. I had the same series pressure washer for the past 6 years and used a downstream chemical unloader quick connect to pull chemical. I attached it...


The injector might be worn out or have something inside of the valve causing it not to ****. If you are using a new high pressure hose or a longer hose this may also have an effect over the injector not working.

Oct 06, 2010 | Northstar Professional Series Pressure...

1 Answer

I can not pull the string to start the engine of power washer


Try removing the spark plug then pulling the cord! If the cord pulls then you cycle the engine a couple of time to see if fuel is coming out of the spark plug hole! If no fuel present replace spark plug and try starting the engine. always have water running through your washer before you attemp to start!

Jul 17, 2010 | Honda Pressure Washer PSI 3000

1 Answer

Not sprayer engine stop


This is an indication that the unloader not working properly. When you release the trigger the unloader senses the increase in pressure and bypasses the water into the water inlet. When the unloader is not working and you release the trigger, the water pressure builds quickly and overcomes the power of the engine shutting it down. Here is the manual for your machine, http://www.pressurewashersdirect.com/manuals/Simpson_WaterBlaster%20manual_2.pdf

and some information about troubleshooting from the manual.
"Not Unloading. Leak in Gunvalve or Hose. Repair gun leak . Replace leaking or broken hoses. Debris or wear in Check Valve. Remove Check Valve parts and clean. Check O-Ring. Reface with emery cloth, or replace checkvalve. Damaged Piston U-Cup. Rebuild Unloader Valve (Service Center)."
Usually when the unloader fails the pressure regulator will most likely need to be replaced as the unloader is usually incorporated within. For now try lowering the pressure some and just tie the trigger open untill you can service. Good luck.

Jul 14, 2010 | Simpson WS4050V Water Shotgun 4000 Psi...

1 Answer

I have a gc160 honda pressure washer. when trying to crank the washer with the pull cord it acts like it wants to crank but never does.i have changed the sparkplug took the carb. off and cleaned it...


release the water pressure on the pressure gun.that helps.shouldnt have blowby coming out the breather.that indicates worn rings.do a compression check.should be at least 90-130 PSI

Jul 03, 2010 | Karcher 2500 PSI Pressure Washer

1 Answer

Water coming out of where the hose goes into the washer.


Maybe just a worn o ring inside the hose where it connect to the washer.

May 29, 2010 | Honda Pressure Washer PSI 3000

1 Answer

How do you drain any water that might be in the


Once you have finished with the machine, and it has stoped running and has the inlet hose disconnected., leave the engine switch in the off position and while holding the pressure gun trigger on, pull the starter a few times to pump out any excess water. If it has been a cold night you could leave the machine somewhere a bit warmer for half hour before using it.

Nov 29, 2009 | Honda Pressure Washer PSI 3000

1 Answer

I have a honda 3200 psi power sprayer that is loosing power, is their something that I can do to fix it.


is the machine coupled up to mains water or are you make the machine **** from a water tub.
if you are makeing the machine **** , then dont try force feeding with water and looking for a water leak or drip even from pump or connectors.
you might find the machine works great off mains water pressure, if so check the valves

Jul 04, 2009 | Honda Garden

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