20 Most Recent Karcher 2500 PSI Pressure Washer Questions & Answers


i did and thanks - just picked up one that does the same thing and i plan to take your advise

Thank you Jerr

Karcher 2500 PSI... | Answered on Jan 02, 2018


did you forget to shut off the fuel before moving your pressure washer? It sounds like the engine is flooded. Honda GX engines are famous for flooding with the fuel valve left on when moving. Or did you store it in a tilted position? Take the spark plug back out and pull the pull rope a few times...you should see the gas that flooded ejected from the plug hole. Once you feel you got all the gas out, replace the plug. You may want to check your oil and make sure it isn't full of gas now also. If it is good, or you have changed your oil then start it up....It should not have the resistance anymore and should start just fine. Good luck

Karcher 2500 PSI... | Answered on Sep 12, 2017


leaving fuel in a bowl will cause corrosion in the jets and jam the needle and seat operation
take the carby off the machine and go to a shop that can overhaul the unit

Karcher 2500 PSI... | Answered on Jun 29, 2017


leave the choke on for a bit longer

Karcher 2500 PSI... | Answered on May 30, 2017


I've worked on several of these so-called throwaway washers. They all failed from lack of oil. I managed to 'save' one and drilled and tapped a hole to add/ check oil.

Karcher 2500 PSI... | Answered on May 16, 2017


I had the same problem with my Karcher. The recall was lifted Aug. 0f 2007. Tried numerous people at Karcher....head of Customer Service, vice president, etc. No one returns telephone calls not even cutomer service....poor, very poor customer service. Thinking about calling Germany.

Karcher 2500 PSI... | Answered on Mar 31, 2017


Yes, fill'er up.

Karcher 2500 PSI... | Answered on Mar 04, 2017


Try cleaning air filter, excessive dirt build up, over oiled filter, next check wire harness kill switch etc. fuel pump,

Karcher 2500 PSI... | Answered on Aug 06, 2016


I was able to forcefully push it back until it clicked.

Karcher 2500 PSI... | Answered on Apr 02, 2016


check out www.pressureparts.com

Karcher 2500 PSI... | Answered on Feb 16, 2016


G-day Mate.

Did you check if the igniters? they may be cloged up with ****. Unscrew the Sight glass on top of the boiler and run the machine (in cold or hot mode, doesn't matter, as the igniters are running all the time) and see if there are working, you should take them out anyway and give them a wipe with a rag as general maintenance item, and when you put them back in there should be about 5mm gap between them.


Less common reasons for the boiler to not work
- Faulty fuel solenoid valve, (You should hear a click sound about 5 - 10 seconds after you pull the trigger)
- Dirty fuel filter,


Take a look at those simple things and let me know if its any of these.

I have a Karcher HDS 750 1989 Year model

This machine just keeps going, it's had a fairly tough life but it has stood up to it all,

i hadent spent anything on it until about 6 months ago when i purchased a new fuel pump for it as the old was wasn't pushing 170PSI to the Disiel injector it had slowly droped 70psi, and it doesn't create a hotter burn in the boiler, but still very good for a 19yr old pump,

other than that thats all it's needed, it's still going strong to date
Very robust machine.

my e-mail is cgodfx@internode.on.net

Cheers Matt.

Karcher 2500 PSI... | Answered on Jan 08, 2016


Pull starter rope wheel is Jamming against casing usually some lube n check for ware will fix it

Karcher 2500 PSI... | Answered on Oct 04, 2015

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