Question about Karcher 2500 PSI Pressure Washer
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Posted on Jan 02, 2017
SOURCE: not enough pressure
Speed regulation on small engines is notriously fussy.
Check the linkage to the carburetor and look for a small, light spring.
If there are several holes for one end of it, you may have to try more than one to find the spring tension that lets the engine run steadier than it now does.
If not, then either replacing it or changing the length by shortening or lengthening it will probably be needed.
Posted on Aug 09, 2008
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
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
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
Posted on Sep 15, 2009
Sounds like the carb is badly clogged internally. If you can remove it yourself, you can soak it overnight in a can of carb cleaner. But keep in mind some of the internal passageways in the carb are as fine a human hair and soaking may not work, it which case go to plan B, new carb. Last resort you could try to find cleaners small enough to get in the passageways of the carb, I've heard of people using wire brush bristles for example. Today's gas is terrible, it does not take long to gum up the carb, if it sits for any time.
Posted on May 03, 2010
Testimonial: "you nailed it..........shitty fuel and clogged main jet..........lets see if it still runs today..Thanks"
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