Question about Garden
We used power washers for years
When you pull the trigger, the engine is supposed to accelerate because the back-pressure on the pump is released.
The back-pressure is why you're supposed to keep the gun trigger open when starting the engine. It sounds like you're starting the engine with no water passing through the gun.
Inspect the exhaust port >> if exhaust is clogged with carbon or dirt, then the engine will not run at high speed.
The problem may also be cause by a rusted choke lever. If you notice when a small engine accelerates, the choke lever moves up as the carburetor demands more gas.
Start the engine with water passing through the gun >>> move the choke lever a little bit at a time and see what happens. Keep water going out of the gun. When the surfaces are cool, spray WD-40 on the lever and see if you can free it up. WD-40 is extremely flammable.
If your engine will not fire at all by starting with water passing through the gun, then your gas supply might be limited or your carburetor gummed up. Pull off the rubber gas line that connects to the carburetor and see if gas flows.
Next, pull off the air filter and see if the machine runs good without air filter. You may have clogged air filter.
While the carburetor is exposed, spray WD-40 into carburetor. See if you can get engine up to full throttle while spraying WD-40 into carburetor. Keep spraying the WD-40. Keep the water flowing out of the gun.
If the engine throttles up all the way on WD-40 but won't run without it, then your carburetor is probably gummed up.
Our old power washer won't run with the choke set at full throttle. We just got into the habit of leaving the choke alone. We'd pull off the air filter and spray WD-40 into the carburetor so the engine would spark healthy without messing with the choke at all. And we kept the choke about 2/3 open all the time.
Posted on Oct 15, 2010
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Posted on Jan 02, 2017
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