Question about Karcher 3000 Psigaspressure Washer

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You will have to strip the carb and replace the gaskets and diaphragms. Gas goes gummy after such a long period and just about everything will be gunged up, so much so that you will find that about the only thing that will clean it effectively will be lacquer thinners.

Posted on Mar 21, 2011

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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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I have a nearly new briggs and stratton 800 snowseries snow blower that was purchased about 5 years ago. Used less then 10 times with no problems. It sat the past few years and still looks really clean....

Most likely the carb is varnished up. Gas sitting too long will go bad and will gum up the carb jets, valve seats, etc. Rebuild the carb, and it should run. If storing for long time make sure to add fuel stabilizer to the gas, run the unit for ten minutes, shut fuel off let it run until it quits, then put in storage.

Nov 10, 2014 | Measuring Tools & Sensors

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Fuel pump

Testing of the fuel and ignition systems is in order. Intermittent problems need testing when the problem is present, otherwise it won't help find the problem.
I would start by checking for spark on a spark plug wire (or two or three plug wires, in case it may be a bad coil), during those times when it won't start. You need to see a blue, snapping spark to verify ignition system is working.
To check the fuel system, have the fuel pressure checked, and the injector circuit checked. Good that you hear the pump, but you don't know if fuel pressure is correct, or if fuel is getting into the cylinders. One short test is to spray starting fluid or carb cleaner into the intake while engine is cranking. If engine fires up for a few seconds, you know it is a gas related problem.
If ignition system is the intermittent problem, could be failing coil or coils, ignition module, crank position sensor, even the computer, or a wiring problem like a bad connection. Testing of each component will be required, or you could start throwing new parts at it, like many people do, until you find the bad part. Find a reputable mechanic-there still are a few, lol.

Jul 30, 2013 | 1998 GMC Sierra

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Cub Cadet has gas, has spark, has air -still won't start/run

Are you pulling the plug to check for wetness after cranking it a few times, WITHOUT using the starting fluid? Also, I would recommend using carb cleaner in place of the starting fluid. Starting fluid runs the engine VERY hot for a brief time and can possibly damage rings, valves, and aluminum parts.

Jun 09, 2013 | Garden

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I've replaced the ignition module on my Poulan Pro 4218AVHD but it's not starting....does anyone know what the gap size is for this part? I checked the spark plug and it's getting spark but I don't know...

The spark should be blue in color not orange or white. A bluish ornage is ok. The easiest was to set the gap is to tear off the front and back of a match book cover tear it in half and place the 2 pieces between the module and the flywheel losen the module and let it slide against the match book cover. Tighten the mounting screws and then turn the flywheel to remove the match book cover. <- (Been doing this for 40 years!)

I suspect your problem may be fuel / carb related vs ignition.

However.... a bad spark plug will spark when removed and you have grounded the electrode end to the engine but will NOT work when you install it. Make sure you change the plug. (FYI I have seen new Champion mini plugs fail right out of the box.) I have had as many as 3 in a single NEW box of plugs fail.

Just for grins try adding a splash of gas into the spark plug hole or carb throat before you try and start it. If you get a momentary start you have carb / fuel supply problems.

If you discover you have carb / fuel problems just repsond and we can proceed with getting you going again. I will help you.

Thanks for Choosing FixYa

Oct 03, 2010 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

My Generac G2600 has gas in the oil

this is ussually caused by a stuck float in the carb and can ussually be fixed by turning off the gas, removeing the fuel line from the carb,pulling the drain on the bottom of the carb and spraying some carb cleaner in the hose fitting. also its a good idea every time you use it to shut the gas off and let it runn till it dies. allways keep the fuel off when not in use.

Jan 30, 2010 | Electronics - Others

2 Answers

I bought a 5 HP gamefisher outboard motor. It 's been use once and then it sit for years outside. I change the spark plug,clean the carburator,fuel filter looks good.good compression. gas go all a way to...

If spark plug is dry, fuel is not getting to the cylinders. Next thing to check would be the fuel pump... Gas may be getting to carb, but the pump needs to push it into the cylinders too.

Oct 18, 2009 | Boating

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Tractor was used three times before hired landscaper. has sat for the last two years tried to start but will not, it will start with ether and thats it.the intake fuel line was blocked going into the carb...

Sounds like you have a bunch of gunk in the fuel tank and lines etc. perhaps clogging the carb as well.
You need to clean the entire feul system with either carb cleaner or meth-alcohol. Might have to let soak for a while as the old gunk will not disolve very quickly.

Sep 21, 2009 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

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Craftsman 17.5 LT1000 Won't Start - Need Help

pull the flywheel and check if the key(latter models the flywheel itself will need replaced if stripped)is damaged. This is a possibility.

May 27, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

Wont start

If it sat for two years, you probably have varnish and gum buildup in the carb. You'll need to take the bowl off the carb and clean it with carb cleaner. You'll also need to spray the cleaner around the linkages and the jets inside. Be very careful taking apart the carb so you don't lose the float needle.

May 03, 2009 | Honda Ev Plus Cars & Trucks

3 Answers

1976 Dodge motor home with a 360 will not start.

You are on the right path. You gave away the answer when you said you can dry the plugs and then it will start and run for a few seconds before flooding out again.

To solve the problem (there seem to be two of them) do the following:

You need to stop fuel from entering the engine, either disconnect the fuel line from the tank to the fuel pump or route the output from the fuel pump to a gas can or back to the tank, just don't let it get to the carb.

Pull the coil wire, pull the plugs and spin the motor over so it can get dried out.
Pulling the coil wire should help reduce the risk of the fuel being blown from the cylinders from somehow getting ignited. BE CAREFULL!!!

Now dry the plugs and put them back in, plug in the coil wire and fire it up. Based on what you have said it sounds like it will probably start up (if only for a second or three). Now pour two or three teaspoons of gasoline into the carb and start it again.

If it starts and then dies that is a good thing. Do the two or three teaspoons and start it two or three times. This will heat up the compression chambers a little and help to dry them out a little better.

Now, at this point it runs fine (well as fine a 2 or 3 teaspoons will run it) as long as it has fuel, air and spark.

Hook up the fuel line again and start it up. One of two things will take place.

1. All is well! Great, it was just REALLY flooded.

2. It runs for about 10 seconds before becoming flooded again.... ****, it sounds like your "new" carb is flooding the engine. Find out how!

Good luck. I have used this "fix" a few times over the years. Normally the engine is REALLY, REALLY, REALLY flooded. Usually because the original problem happened on a hot summer day and the float stuck when the engine was shut off. The heat of the engine boiled the gasoline which in turn flooded the engine. The float stayed stuck when they came back to start it and TA DA.

Several times a little tap on the side of the carb "cured" the problem and a fuel additive was used to clean up the sticky float issue.

In one instance the 4 banger was so flooded we had to snake a hose into the cylinders and **** the fuel out. We must have sucked a quart of fuel out of that little '80 Mustang. We still ended up draining the oil (it smelled like it was full of fuel too) and we spun it over until it quit spraying gasoline all over. Man was that a mess!!!

Mar 21, 2009 | 1983 Dodge Pickup

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