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Engine oil was throw in the gas tank, engine would not start.

Oil was drain from gas tank.

gas was placed

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You will need to clean other parts of the engine aswell, especially if it was pulled over with oil in the tank. First of all buy some carb cleaner. Now remove the bowl from the bottom of the carb by unscrewing the central bolt (10mm) underneath. You can leave the float and needle in place. Now spray the carb clean over these parts and also direct some up the jet in the middle of the carb body. Clean and replace the bowl. Now remove and clean the spark plug. Before refitting it pull the starter a few times to throw out any oil that might be sitting on the piston. It may also be wise to remove and check the exhaust (12mm) for oil. When it is all refitted the machine should start after a few pulls. It will probably still have some oil in the sytem so don't be alarmed if it smokes (white) for a couple of minutes. Once this has all burned off you should be fully operational again.

Posted on Nov 01, 2008

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Poured oil in the gas tank by mistake of Honda water pressure model GCV160. Drained the gas tank, changed spark plug, drained carburetor still will not start


Sounds like you have oil in the gas galleries of the carb. Fill it with gas turn gas valve on and try starting it a few times with starting fluid to help rince/thin them out so gas can flow through them again. It may smoke more than usual for a while. Dont keep it running on the starting fluid though as it has no lubrication for the cylinder/rings and could scar the cylinder walls. If that doesnt work you can remove it and try to do it manually with a can of carb cleaner or get a new carb. They're on ebay for about $20 or a small engine supllier near you will have one for about the same or a little higher.

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1 Answer

I have the honda CG190 engine on the pressure washer and the manual has a section for draining the fuel tank and carburetor. (storing your engine) Draining the Gas tank is no problem. I do not seem to be...


Easy way to deplete fuel in bowl is to shut off fuel while you are using pressure washer and are about to finish your work. Just run the engine till it quits. Difficult way is to remove nut under the bowl. You might also look into new products designed to pour into tank for storing your engine and a method to displace the water from the pump and infuse oil. Good luck with your unit/

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I have DeWalt3750 psi pressure washer, its been long time since I used it, now that I wanted to use it, I can not start it. I already changed the oil and filled it up with new oil but still can not start,...


Here is the long answer with everything we learned while using a power washer twice a day for years::
This assumes you did not turn power washer over or on its side to drain oil, or dirty oil will flow into carburetor requiring complete carburetor cleaning.

It sounds like could be one of the problems listed below or a combination of those things.
1) The exhaust is partially blocked. Check the screen covering exhaust port for carbon and dirt build-up. High-speed exhaust air must pass freely. We finally broke the exhaust screen out with a screwdriver to get our machine going one day.
2) Gas is not flowing freely to carburetor > under gas tank, find the rubber hose connected to carburetor. Pull off rubber hose and make sure gas flows freely. You can use this hose to drain gas tank of old gas ... and then put in fresh gas.
3) Carburetor is partially gummed up and engine cuts off when gas flow slows down. Buy some gum out, and then don't store power washer with gasoline in the tank. Or put additive in gas when storing machine.
4) The choke is letting in too much gas or not enough gas. Try different adjustments. The choke-lever on our power washer got so bad that we could not set throttle at full open or the machine would die. We still use the machine at 2/3 throttle, and then start it each time using WD-40 as described below.
5) Dirty air filter that won't let engine breath enough air to keep up with combustion. Take off air filter and see if problem persists.
6) The spark coil is going bad?? Change spark plug to see if problem persists. Is spark plug wire pushed all the way onto the spark plug?

Now the nitty gritty: we're gonna start that thing right now
7) Take off air filter. Spray WD-40 directly into carburetor. Yes, we use WD-40 every time to start my power washer, and we use the washer twice a week.
Spray in the WD-40, Pull the engine cord. The engine will fire on WD-40. Guaranteed.
Once it starts, keep spraying WD-40 directly into carburetor to keep engine going.
If engine will not fire and keep going on WD-40, then your spark is suspect.
If your engine fires and runs on WD-40 but dies without it, then your gas supply or carburetor are suspect
8) Carburetor problem >>> try Gum out >>> and then take machine to small engine repair shop
9) Spark ... take out spark plug. Put spark wire back on. Hold spark plug by spark wire. Touch metal threads of spark plug to metal opening where plug came out. Metal to metal. Pull back start cord and look for spark between the metal.
If you have no spark, then spark coil is bad >>> take machine to small engine repair shop

Add a comment if you need more help

Nov 28, 2010 | Dewalt 3800 PSI Pressure Washer

1 Answer

Bought unit new last summer. Used it once last summer and once this year. It started fine both times. Today, it will not crank. I have replaced the spark plug, checked the air filter (it is clean), gas...


Unable to crank? Do you mean unable to start?

If you leave gasoline inside tank over long period of time, that will 'gum-up' and ruin carburetor.
To prevent problem, put additive in gasoline or empty gas from tank:: under gas tank should be a hex bolt that holds up gas filter > loosen bolt and drain gas.

Starting the engine:
Take off air filter and spray WD-40 directly into carburetor.
Start engine, engine should fire on the WD-40 accelerant.
If engine fires but does not keep running, try spraying WD-40 into carburetor continuously to see if you can keep engine going.
If engine stops each time after it no longer gets WD-40, then carburetor is bad or gasoline not getting to carburetor or gasoline is bad.
Try fresh gasoline.
Do not turn small engine on side or upside down or oil will get into carburetor.

Check gas supply: Go to gas filter under gas tank. Pull loose rubber hose that connects to carburetor and see if gas comes out rubber hose.
If gas is flowing to carburetor, then carburetor is gummed up.
Small engine repair might suggest 'gum out' or have other suggestions ... but you may need a new carburetor

If engine will not fire on WD-40
If engine will not fire on WD-40 at all, then spark coil may be bad or exhaust port is clogged
Check screen that covers exhaust >> is it covered with carbon and dirt or can air pass through it easily?
Check spark
Remove spark plug
Put spark wire back on spark plug
Hold spark plug by rubber spark cap so hands don't touch metal part of spark plug
Touch spark plug threads against hole where spark plug was removed >>> metal to metal so it conducts electricity
Pull start cord and look for sparking between spark plug threads and metal of engine (don't look at the spark gap ... look where metal meets metal
If you have no spark, the spark coil is bad >> time for estimate from small engine repair shop or get your part number and order replacement

Oct 13, 2010 | Craftsman Pressure Washers

1 Answer

ENGINE WILL NOT START


My power-washer suffers from same problem after sitting idle.

After paying for a new carburetor, I discovered how important it is to drain the gas if washer is going to sit idle.

Another time, we had a problem with the screen covering exhaust outlet. Deposits from the engine + dirt clogged the screen. Although it's not the solution for everybody, we broke the screen open with a screwdriver and the machine ran fine after that.

Small gas engines require 3 things. Compression, spark, and fuel. Take out spark plug. Put finger over spark plug hole and pull cord or push starter. Do you feel suction? If yes, then you have compression.

If machine will not turn over at all, then your motor might have run out of oil. Power washer needs oil in 2 places. It needs oil for the engine just like a lawn mower. Oil plugs are located low on each side of engine. It doesn't hurt to change oil, but do NOT NOT turn small engine upside down or oil will get into carburetor which requires removal and cleaning. I learned that the hard way.

The power washer also needs oil for the pump head. This is the box attached to front of engine. Usually 10W20 non-detergent is a good choice. Oil is usually about half way up inside pump head.

Now hook spark-wire back to spark plug. Hold spark plug in hand. Touch threads of spark plug to metal spark plug opening. Now pull cord or push starter. Do you see sparking in the spark plug gap? If yes, then you have spark. Put new spark plug in anyway. If no, then you need parts from small engine repair service.

Spark plug is in. Take off air filter so you have access to carburetor air intake. Put fresh gas in tank. Use starter spray or WD-40 as a starting accelerant. Set your choke to start engine. Spray starter fluid into carburetor opening and pull cord or push starter. The engine should fire up on the starter fluid. If engine doesn't fire, then try setting choke in different positions. If engine doesn't fire up then carburetor is suspect.

If engine fires but dies, keep spraying starter fluid into carburetor to see if you can keep it going that way ... and then move choke in different positions ... you might need extra hands for that maneuver.

If machine turns on, but dies when filter is put back, then filter might be clogged. Time for a new filter anyway.

Finally check the fuel filter and fuel line below the gas tank. It usually has a hex head bolt. Loosen bolt and see if fuel is able to fall out of tank. Loosen rubber fuel line at both ends and see if fuel is flowing. This will tell you if fuel can get to carburetor.

Usually these measures get the thing going or tell you if professional service is needed.

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1 Answer

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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

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1 Answer

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1 Answer

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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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