Pressure washers powered by Honda’s engines are renowned for their superior performance and longevity. If you own such a pressure washer and use it regularly, you likely will have some problems over time. Some of them are easy to fix, and some of them will be harder. If you do not have a lot of experience, ask for help from a professional for some problems that are hard to diagnose.
If your pressure washer’s Honda engine doesn’t start, stalls, or doesn’t produce sufficient power, check that its filters aren’t plugged with deposits of dirt and fuel. Make sure the carburetor adjustment is correct. Be sure to clean your carburetor from deposits of old fuel. Also, check the fuel tank and the fuel lines and ensure no vapor lock occurs.
In this article, I will go through the most common problems with your pressure washer with a Honda engine and how they can be fixed. Honda engines are used in brands like Briggs & Stratton, Craftsman, Pressure-Pro, and PowerBoss.
Contents
- 1 Problems with the Honda Gas Pressure Washer Engine
- 1.1 ● 1. Honda Pressure Washer: Keeps Stopping and Starting
- 1.2 ● 2. Honda Pressure Washer: The engine won’t run
- 1.3 ● 3. Honda Pressure Washer: Engine Stops
- 1.4 ● 4. Honda Pressure Washer: Engine not providing enough Power
- 1.5 ● 5. Honda Pressure Washer: Oil Leak
- 1.6 ● 6. Honda Pressure Washer: Water in Oil
- 1.7 – Solution:
- 2 Pressure Washer Brands Using Honda Engines
- 3 Troubleshooting table Gas Pressure Washer with Honda Engine:
Problems with the Honda Gas Pressure Washer Engine
The majority of engine-related problems with gas-powered pressure washers are caused by issues in the filters or the carburetor. This is a direct outcome of poor engine maintenance. Let’s examine these engine problems with your Honda pressure washer and find their solutions.
Let’s examine these engine problems with your Honda pressure washer and find their solutions.
● 1. Honda Pressure Washer: Keeps Stopping and Starting
If your pressure washer continually starts and stops, it could be due to a blocked fuel tank vent inducing a vapor lock. In some situations, a faulty gasoline filter could also be a cause.
When a fuel tank’s vent becomes clogged, fuel vapors accumulate, causing a rise in vapor pressure. This vapor pressure results in a vapor lock, which inhibits fuel supply to the carburetor and causes the engine to halt shortly after starting.
– Simple fix:
As a simple fix, open your gasoline cap and allow the vapors to exit the tank. Restart the engine. Make sure that the tank’s vent is not clogged with dirt. If this does not resolve the issue, inspect your fuel filter and replace it if signs of wear are detected.
● 2. Honda Pressure Washer: The engine won’t run
If your engine won’t start, inspect the spark plug and ensure it’s in good working condition. If this does not solve the problem, remove the carburetor and clean its ports with carburetor cleaner liquid.
The electrodes of the spark plugs are frequently compromised by carbon buildup, reducing spark quality and making starting the engine difficult.
– Solution:
If the problem persists, consider inspecting the carburetor on your pressure washer. Remove the carburetor and purge it of any old fuel residues. To help with the repair, you can purchase a carburetor repair kit and cleansing solvent to remove sticky residues.
● 3. Honda Pressure Washer: Engine Stops
If your engine begins to stall immediately after starting, your air and fuel filters must be duly examined and cleaned. You should also check for a vapor lock in the tank and ensure the carburetor is serviced and adjusted correctly.
The air and fuel filters keep external particles out of the carburetor. As a result, these filters typically get clogged with debris, affecting the engine’s air-fuel supply and resulting in a loss of power.
– Solution:
To resolve this problem, check these filters separately and clean/replace them as needed. If the problem persists, inspect the gas tank for vapor lock and consider adjusting the carburetor’s adjustment screws.
● 4. Honda Pressure Washer: Engine not providing enough Power
If your engine isn’t producing enough power, make sure the water supply is adequate, and there are no kinks in the water hoses. Following that, check that the air filter is clean and the carburetor jets are not clogged with debris.
The air-fuel mixture could be too rich if the engine isn’t producing enough power. This means that the engine is receiving too much fuel but not enough air to generate sufficient power after combustion. The carburetor or the filter may both be at fault.
– Solution:
Check the air filter, which should not be blocked with dust, to ensure sufficient air supply. The L and H screws on the carburetor should be correctly adjusted, and these screws regulate the engine RPMs at low and high speeds, respectively.
When you tighten the L screw, you restrict the fuel flow to the carburetor; hence, the air-fuel mixture becomes lean. This increases the engine’s RPMs. Conversely, loosening the screw reduces the RPMs. While you’re performing the carb adjustment, always keep the screw midway along both extremes. This would ensure that the RPMs stay optimum and the engine keeps delivering sufficient power.
Furthermore, make sure that no air is trapped in the pump and that the hoses are not kinked, as this produces a significant back pressure on the engine. Hence, it may not deliver enough power in that situation.
● 5. Honda Pressure Washer: Oil Leak
If your engine is leaking oil, it is most probably the result of a faulty seal. In almost all instances, replacing the seal would solve the problem. An overfilled tank may also cause oil to leak off in some cases.
You can purchase an oil seal kit to assist you in replacing seals as needed. These oil seals are found inside the oil inlets. On either side of the engine, there are two inlets sealed with caps.
– Solution:
Use a screwdriver to aid in removing the seal and inspecting its condition. Replace it if it appears to be damaged. Avoid overfilling your oil tank as a precaution, as this can result in oil spilling out of these inlets.
● 6. Honda Pressure Washer: Water in Oil
If water gets into the engine oil, its oil seal is ruptured. In this condition, you should replace the seal as per your manufacturer’s recommendations.
The oil appears milky when water enters it. One possible cause of this is a leaky oil seal. A worn-out engine piston is another less likely cause. Mechanical wear causes metal to chip off from pistons over time, increasing the gap between the piston and cylinder walls.
As a result, water entering the piston via the inlet manifold might reach the crankcase and combine with oil to form a milky suspension.
– Solution:
If your engine is relatively new, the problem is likely with the seals/gaskets. Hence, you would need to replace your engine’s seal/head gasket. If your engine is still under warranty, you should contact your manufacturer’s customer service and ask them to perform this replacement for you. I would not suggest placing your warranty at risk by doing the replacement yourself.
In the event of a worn-out piston, contact the manufacturer to see if the engine’s warranty is still valid. If not, your pressure washer may require a new engine.
Pressure Washer Brands Using Honda Engines
It is to be noted that Honda does manufacture pressure washers, but they aren’t available for sale in the US or the rest of the world except Japan. However, Honda’s engines power a wide variety of pressure washer brands.
Typically, Honda’s manufactured engines fall into two major categories. i.e., GC and GX series. GC series is mostly domestic grade, while GX engines are built for commercial applications. Their sizes range from 200-700 cc.
The majority of Honda engines are used in Simpson’s pressure washers, and a few are used in Briggs & Stratton’s machines. While Craftsman, Pressure-Pro, and PowerBoss also have some commercially available models that utilize Honda’s four-stroke engines.
Troubleshooting table Gas Pressure Washer with Honda Engine:
Problem | Cause | Solution |
The pressure washer is not producing high pressure | Hose with small diameter | Replace your hose with a 1″ (25mm) or 5/8″ (16mm) hose |
Restricted water supply to the washer | Check for the kinks and leaks in the hose | |
Inadequate water supply | Ensure the water source is unobstructed and fully turned on | |
Clogged intake filter | Remove the filter and rinse it with warm water | |
Air in the pump | Ensure that the hose and fittings are airtight. Shut off the washer and squeeze the trigger until water flows steadily from the spray tip | |
The suction tube or detergent bottle is not connected properly | Install the suction tube and detergent bottle correctly | |
Detergent too thick | Dilute the thick detergent by adding water | |
Obstructed spray tip | Remove the debris with a needle | |
No pressure tip on the wand | Install a suitable pressure tip at the end of the wand | |
If your model has a belt, it can be loose. | Tighten or replace the belt. |
Problem | Cause | Solution |
Pulsing pressure washer (output pressure varies high and low) | Inadequate water supply | Ensure that the water source is fully on and check the hose for kinks and blockage |
Obstructed spray tip | Remove the debris with a needle | |
Pump sucking air | Ensure that the hose and fittings are airtight. Shut off the washer and squeeze the trigger until water flows steadily from the spray tip | |
Clogged intake filter | Remove the filter and rinse it with warm water | |
Calcified hose, tip, or trigger | Clean the hose, pressure tip, or trigger with vinegar or a cleaner designed for this purpose |
Problem | Cause | Solution |
Noisy Pump | Air in the pump | Ensure that the hose and fittings are airtight. Shut off the washer and squeeze the trigger until water flows steadily from the spray tip |
Clogged inlet filter | Remove the filter and rinse it with warm water | |
Pump leaking water | Damaged or worn water seals | Replace the seals with new ones or call a professional |
Loose fittings | Ensure that all the fittings are tight | |
Erratic water pressure, changing up and down | Unloader valve | Check and clean the unloader valve. If in bad shape, replace it |
No output pressure. Or the motor stops when using the trigger (electric models) | Unloader valve | Check and clean the unloader valve. If in bad shape, replace it |
Problem | Cause | Solution |
Leaks in the spray wand, spray tip, or extension | Damaged or broken O-rings or plastic insert | Replace the worn O-rings or call a professional |
Pressure washer pump dripping oil | Worn or damaged oil seals | Inspect the oil seals and replace them if worn |
No water from the washer outlet | The water supply is off | Turn the water supply ON |
Kink in the hose or faucet not fully open | Remove any kinks and debris from the hose or water lines. Check and fully open the faucet. |
Problem | Cause | Solution |
The motor won’t start | Check the battery | Check if the battery is charged correctly. Charge or replace when in bad condition. Examine the battery terminals for a proper connection. Clean if needed. |
Check the fuel filter | Clean the fuel filter if dirty. In that case, check the gas tank, as this is the most likely culprit. | |
Check the gas supply | Check the fuel level and add if needed. Ensure that the gas can flow to the carburetor. Remove any blockage. | |
Check the Air-filter | Clean the air filter. Replace it when it is in bad condition or it is a paper air filter. | |
Check the carburetor | Remove and clean the carburetor with some carb cleaner. It is also possible to clean it without removing it. | |
Fuel gap blocked | Check that the hole in the fuel cap is open. Clean if needed. | |
The engine is stalling, or starts and stops | Check the carburetor | Remove and clean the carburetor with some carb cleaner. It is also possible to clean it without removing it. |
Air filter | Clean the air filter. Replace it when it is in bad condition or it is a paper air filter. | |
Check for bad gas | Suppose you have old gas, more than a few months old. It can turn bad. Drain and replace the gas. Next time add a fuel stabilizer. |
How can I ensure my pressure washer’s engine lasts longer?
Regular maintenance is key to a longer-lasting engine. Check filters, carburetor adjustment, and fuel tank regularly. If unsure, seek help from a professional.
I’ve been having some issues with my pressure washer, this article was very helpful.
Thank you for your feedback, Wallace! I’m glad the article was helpful in addressing the issues you’ve been experiencing with your pressure washer. Let me know if you need more assistance.
As a first-time pressure washer owner, I found this article extremely useful.
Thank you for your feedback, Veronica! I’m glad you found the article useful as a first-time pressure washer owner. If you encounter any further issues, feel free to reach out for assistance.
I had no idea about the importance of cleaning the carburetor, thanks for the tips!
Thank you, Kathryn! I’m glad you found the tips on cleaning the carburetor helpful for your pressure washer with a Honda engine. Let me know if you have any more questions.
What are some signs that my fuel tank’s vent is clogged?
If your pressure washer stalls, check the fuel tank vent for clogs. Make sure the carburetor is clean and filters are not blocked with dirt. Seek professional help for difficult issues.
What’s the best way to prevent these issues?
Make sure to check and clean your filters and carburetor to prevent issues with your Honda engine pressure washer. Regular maintenance is key!
I feel much more confident in troubleshooting my pressure washer after reading this.
Thank you, Patsy! I’m glad the article was helpful for you in troubleshooting your pressure washer. Don’t hesitate to reach out if you have any more questions or need further assistance.
Can I use these tips for other pressure washers as well?
Yes, these tips are generally applicable to pressure washers with Honda engines from different brands. Check your manual for specific instructions. Hope this helps!
Can I do these repairs myself or do I need a professional?
For these repairs, it’s best to ask for professional help for some harder problems. It’s always better to be safe than sorry. Good luck with your pressure washer maintenance!
Great tips for maintenance and troubleshooting!
Thank you, Francis! I’m glad you found the tips helpful for pressure washer maintenance and troubleshooting. Let me know if you have any specific questions or concerns.
Is it easy to replace the spark plug myself?
Yes, you can easily replace the spark plug on your Honda pressure washer engine. Just make sure it’s in good working condition and clean the carburetor if needed. Best of luck!
Are Honda engines better than other brands for pressure washers?
Yes, Honda engines are known for their reliability and performance in pressure washers. Regular maintenance is key to avoiding common issues. Make sure to check filters, carburetor, and fuel lines if you encounter any problems.
Wonderful guide to troubleshooting common issues with Honda engines.
Thank you, Misty! I’m glad you found the troubleshooting guide helpful for Honda engines. Don’t hesitate to reach out if you have any more questions.
Are there any specific tools I need for these repairs?
Vera, for these repairs, you may need a carburetor cleaner, a carburetor repair kit, and a troubleshooting guide. Be sure to inspect your spark plug and filters as well. Good luck!
Very informative article for beginners like me!
Thank you, Tamara! I’m glad you found the article informative. If you ever have any issues with your pressure washer, feel free to reach out for help. Happy cleaning!
I appreciate the step-by-step solutions provided in the article.
Thank you, Karl Lane! I’m glad you found the step-by-step solutions helpful for your pressure washer powered by a Honda engine. Let me know if you need more assistance.
What signs should I look for to know if my filters are clogged?
Check for engine issues if stalling, starting issues, or lack of power. Clean filters, inspect carburetor, and adjust settings. Seek professional help for difficult diagnoses.
How often should I clean the carburetor?
Clean your carburetor from old fuel deposits to solve engine issues. Regular maintenance is key to optimal performance. If unsure, seek professional help for harder problems.
Thank you for breaking down the problems and solutions clearly.
Thank you, George Harper! I’m glad you found the information helpful. Let me know if you have any other questions or need further assistance.
Very helpful information on fixing common issues.
Thank you for the positive feedback, Gary! I’m glad you found the information on fixing common issues with Honda pressure washers helpful. Let me know if you have any specific questions.