He cleaned the carb out put it back together, same results. I think it's either the leak on the pressure line or back to the unloader if correcting the leak doesn't solve the problem. I tried a small amount of Seafoam Fuel System Cleaner in a full tank of fuel, but it did not help.

I have not run it without water so I am pretty sure the pump is ok internally.

I have thought about troubleshooting it further but the units all check out and operate properly. I guess because these carbs were around 20 dollars. By logging into your account, you agree to our The unloader is used to relieve the water pressure within … If you experience constant surging or a drop in the pressure from your cold water pressure washer, it most likely has something to do with a blockage. This, I had something similar on my pressure washing that resulted in it blowing the 13A fuse, If there is a leak on the high pressure side the pressure washer sees this as the on signal. If as soon as you pull the trigger you get high water pressure, and as soon as you let go of the trigger, it stops, then the unloader valve is doing its job. The grass could be the problem. Joe95 Super Member. It is telling the operator that the water supply does not meet the pump’s recommended flow rate. It does seem like I recall some units that do this, like Azis described. Thank you lord. Website operating I was given a pressure washer with a Honda GCV160 engine that did not start. Is it the unloader valve not opening at all or is it opening and closing too fast? But generally, if the engine will run, albeit poorly, Seafoam can clean out the varnish.Hey Jason, Thanks a million! I believe both problems are related to a sticking unloader valve. All information is provided "AS IS." However, I have another problem that it did not fix.

If it's surging at idle with a new carb, an air leak is more likely. Gas and Electric Pressure Washer Troubleshooting Tips for 20 of the Most Common Pressure Washer Problems. If your engine will not idle and is continuously stalling, a bad unloader valve may be the cause.

This time I was able to remove the main jet although it still wasn't easy, but some very small needle nose pliers helped. Both the water pressure and throttle is hunting and surging. He cleaned the carb out put it back together, same results. This time, I studied it and the engine (governor) surge was directly affected by the pump surge. Well It started right up as usual. This means that there is something partially blocking the spray coming from the nozzle, an obstruction in the hose, or possibly a damaged hose or valve. It hunts and surges.

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If not, discontinue using the pump, because it will suck air, causing cavitation that can damage the pump’s parts. There are about six for the carb alone. Sears gt twin 16 hp

I have tried different supplies, checked the fittings and filter at the inlet cleaned as sealed. Thanks for the help. Model 580. Montgomery Wards 11 hp Lot no.

If your lawnmower surges up and down you can repair as follows: I cleaned the carb to like new condition, replaced the needle, seat, and float. Pressure washers are not infallible. Mld. Here’s how we know what they are: Reading 300+ emails from pressure washer users asking for help to solve their machine’s issues and counting the occurrences of each fault in an Excel spreadsheet.

They can develop issues that make them work sporadically or inefficiently, particularly if they are used a great deal. That fixed my flooding problem which spilled gas out through air cleaner when unit was shut off. no.# 31-027-3982 38 inch deck. It hunts and surges. Start by using our list of symptoms to identify any Ryobi pressure washer problems that look familiar.

Upon further review, the motor had good compression and spark and would sputter if I sprayed carb cleaner into the the carb. I think it's becasue of a leaking spraygun though. When your lawnmower sits idle over the winter with a half-empty gas tank – condensation builds up inside the gas tank and mixes that water (condensation) with the gas. There are 20 pressure washer issues that are by far the most common. By logging into your account, you agree to our Cars, SUV's, Vans, Trucks, RV's, Boats and Gasoline Outdoor Power EquipmentOutdoor Gasoline and Electric Powered Equipment and Small Engines

Craftsman 3000 2.7 max with a Honda OHC engine GVC190. …