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Troy-Bilt Pressure washer runs rough

When your Troy-Bilt gas pressure washer is running rough, surging, sputtering, or hesitating, 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 main jet, pilot jet, needle valve, or fuel passages. Clean the carburetor with carburetor cleaner; if cleaning does not correct the problem, install a carburetor repair kit or replace the carburetor. A clogged fuel filter is the next likely cause, especially if old fuel remains in the fuel tank, so drain the tank and replace the filter. A blocked fuel cap vent can also restrict fuel flow and make the pressure washer engine run poorly or stall. Loosen the cap slightly as a test, then replace it if the vent is clogged. A dirty air filter can limit airflow and cause a rich mixture, while a clogged pre-cleaner is possible but less common. These checks can help resolve a pressure washer engine running rough or pressure washer carburetor problem. Enter your model number to find the exact replacement part for your Troy-Bilt pressure washer.

01 - Troy-Bilt Pressure Washer 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 - Troy-Bilt Pressure Washer 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 - Troy-Bilt Pressure Washer 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 - Troy-Bilt Pressure Washer 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...d, replace the gas cap.
Highly Likely

05 - Troy-Bilt Pressure Washer 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 - Troy-Bilt Pressure Washer Pre-Cleaner

The pre-cleaner might be clogged. However, this is rare.
Highly Likely

Frequently Asked Questions

Why is my Troy-Bilt pressure washer running rough or sputtering?
Why does my pressure washer start, then die or keep shutting off?
Can a dirty air filter cause a Troy-Bilt pressure washer to run poorly?
How do I find the correct Troy-Bilt pressure washer carburetor or fuel filter?
What should I check before replacing the carburetor on a pressure washer that runs rough?