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HomeRepair HelpBriggs & Stratton RepairBriggs & Stratton Pressure washer runs rough Repair
Briggs & Stratton Pressure washer runs rough
If your Briggs & Stratton gas pressure washer is running rough, surging, sputtering, hesitating, or the engine bogs down under load, the carburetor is the most likely cause. Stale or ethanol-blended fuel left in the carburetor during seasonal storage can evaporate and leave a sticky residue that clogs the passages. Clean the carburetor with carburetor cleaner, then rebuild or replace it if cleaning does not correct the problem. A clogged carburetor repair kit may also need replacement. Next, check the fuel filter, since old fuel can restrict fuel flow and make the pressure washer engine run poorly. A clogged fuel cap vent can also cause rough running or stalling by preventing air from entering the fuel tank. Loosen the cap slightly as a test, and replace it if the engine runs better. A clogged air filter or pre-cleaner can limit airflow and create an overly rich fuel mixture, so replace these parts as needed. Enter your model number to find the exact replacement carburetor, fuel filter, fuel cap, air filter, or pre-cleaner for your specific Briggs & Stratton pressure washer.
01 - Briggs & Stratton Carburetor
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the pressure washer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to run roughly. If the carburetor is clogged, try cleaning it with carburetor cleaner. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor.
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02 - Briggs & Stratton Carburetor Repair Kit
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the pressure washer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to run roughly. If the carburetor is clogged, try cleaning it with carburetor cleaner. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor.
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03 - Briggs & Stratton Fuel Filter
The fuel filter might be clogged. A clogged fuel filter is most commonly caused by leaving fuel in the pressure washer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the fuel filter and cause the engine to run roughly. If old fuel was left in the pressure washer, drain the old fuel from the fuel tank and replace the fuel filter.
Highly Likely
04 - Briggs & Stratton Fuel Cap
As fuel is consumed, the pressure in the gas tank rises. To relieve this pressure, the gas cap uses a small vent to allow air to enter the gas tank. If the gas cap vent is clogged, air won’t be able to enter the gas tank, and the pressure in the tank will begin to rise. When the pressure in the gas tank exceeds the pressure in the engine, the engine will stall or run poorly. To determine if the gas cap vent is clogged, try slightly loosening the gas cap and then starting the engine. If the loosening the gas cap allows the engine to stay running, this indicates that the gas cap vent is clogged. If the gas cap vent is clogge...
Highly Likely
05 - Briggs & Stratton Air Filter
The air filter may be clogged. If the air filter is clogged, the engine will get too much fuel and not enough air. As a result, the engine may run roughly. If the air filter is clogged, replace it.
Highly Likely
06 - Briggs & Stratton Pre-Cleaner
The pre-cleaner might be clogged. However, this is rare.
Highly Likely
Frequently Asked Questions
Why is my Briggs & Stratton pressure washer running rough or surging?
Can a clogged fuel filter or air filter make a pressure washer run poorly?
Why does my Briggs & Stratton pressure washer start, then stall after a few seconds?
How do I find the correct Briggs & Stratton pressure washer carburetor or filter part?
Should I replace the carburetor when my pressure washer runs rough?
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