Question about Karcher 2500 PSI Pressure Washer

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Honda gx120 starts runs for 45 secs, cut out then will restart 45

The honda engine is fitted to a pressure washer, have cleand out fuel tank, carb blown out with air line, strats runs for about 45 secs then cut out, will restart but only runs for about 45 secs ??

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Sounds like fuel starvation. there is a small filter insde the tank. if you take the tank off you will see that where the fuel hose attaches to the tank. this spigot unscrews from the take to reveil the filter.
Hope This helps

Posted on Oct 12, 2009

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Posted on Jan 02, 2017

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I hav a Honda 24 hp v-twin cranks up runs for about 10 sec cuts off. ive changed fuel filter . what else could it be


Gs is not properly getting into the motor. Check and clean the carburetor. Also make sure that the float in the carb is not getting stuck. If so it will stop fuel flow into carb and the motor will cut out after the fuel from the float is exhausted.

Dec 31, 2014 | Honda Garden

1 Answer

Have a Speed Clean 2000 PSI Pressure Washer with B&S 3.75 Enigine that will not stay running. The unit will start and run for 30-45 seconds then stops. Can keep the engine running a little longer if I


the problem is with the carb. not able to keep enough fuel going into the float bowl to support engine staying running. could be hose off gas tank clogged or petcock, coud be main jet sticking closed or float level out of adjsutment.

Dec 17, 2011 | Garden

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Powerwasher honda 13.0 running fine until gets hot after 30 min. cuts out every 5 mins after that.


If this has the thick silver gas cap, I have had similar problems on a number of these engines because it is a vented fuel cap and it will slow or even stop the fuel flow if they stop venting Try loosening or better yet replacing it. If that doesnt solve it then you may want to drain the fuel and put in fresh fuel Pressure washers will get water in the tank. Also make sure you drain the carb bowl. There is a bolt on the side of the carb bowl for that purpose.

May 08, 2011 | Honda 8 HP Engine

1 Answer

GX (or GTX, not sure) 360, 5.5 hp Honda engine on a pressure washer; engine will start and run perfect for about 30-45 seconds, no smoke or rough idle during that time, then engine dies and will not start...


Try draining all the fuel from the tank and carburetor. Replenish with fresh fuel. Try using an additive that keeps the fuel fresh longer and will displace some moisture. Good luck.

Mar 05, 2011 | Honda Garden

1 Answer

Was running fine till ran out of gas ........fill tank up ...try to restart it .......wont start replaced plug ........still no go .


Recurring issues with honda engine no start. Engine was thought to be out of gas however engine was actually shut down by oil alert. Check/change oil to reset, or unplug wire from oil alert and check engine. Vacuum in fuel system due to faulty fuel cap. Loosen cap to allow air in tank. Water in fuel. Water will condense out of the fuel in fuel container and will be introduced into tank. Water is heavier than fuel and will enter carb bowl. Check engine fuel tank with flashlight for signs of water, remove fuel bowl (shut off fuel) and clean. Spark plug is rarely issue, however could be wet from too much choke. Good luck

Sep 11, 2010 | Honda Pressure Washer PSI 3000

1 Answer

Honda pressure washer runs fine for 10- 15 seconds and quits, walk away for a few minutes and it will start againand do the same thing


Disconnect fuel supply line from carb and verify that you have "Full Line Flow" from the fuel tank to the carb. If not, check line, filter and in-tank screen for restrictions.
Sounds as if the fuel supply is trickling in the carb very slowly and the engine burns it faster than the line can supply.
Hope this helps.

Oct 07, 2009 | Garden

1 Answer

Engine keeps shutting down


Most Honda engines have an oil pressure switch that prevents engine damage due to low/no oil pressure. Make sure there is sufficient oil in the engine and that the wire is connected to the pressure switch.

May 28, 2009 | Karcher 2500 PSI Pressure Washer

1 Answer

Honda 5hp engine wont run


check oil level. it has a low level shut off switch ?? May be it

May 04, 2009 | Karcher 2500 PSI Pressure Washer

1 Answer

Pressure washer stalls


Pressure washers work under very dirty conditions, no wonder they encounter engine problems. Here are a few pointers from a former pressure pump tech. The unloader is a source of engine overloading however this can easily be checked with a pressure guage attached to the gun with a tee fitting having the guage and the normal tip used for the unit. The pressure should never rise over rated pressure. The pressure should drop considrably when trigger is released. The life of the pump and engine can be increased by setting max pressure to 75% of rating. Most engine problems are from following conditions:
Leaking or misadjusted valves; clogged muffer /spark arrester; weak spark coil that is about to fail completely; kill switch/oil sensor wiring and or sensor mal function; gas cap not venting properly causing vacuum in tank and wet or dirty air filter.
All these problems easy to check, fastest repair is to disconnect oil sensor wire to check oil safety system. Then temp replace coil with known good coil. Loosen muffer bolts to check for clogged muffler. Temp run engine without gas cap to check for vacuum. Finally if everything fails, run the engine with carb cleaner spraying directly into the intake. If the engine continues to run with carb cleaner then the problem is fuel delivey and faulty carb. enjoy

Nov 15, 2008 | Honda Pressure Washer PSI 3000

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