Check that the water supply and inlet screen are unrestricted. Do you think if I put some lube on, it would smooth out? It hunts and surges. I like to disassemble the piston/valve assembly and clean it up, replace o-rings if needed, and then I coat it with vaseline and reassemble. Rpm's drop, the throttle opens, the engine now draws from the less obstructed main jet, rpm's recover, throttle closes, repeat ad nauseum.Thank you Jason B. I actually wanted to hear from you since your advice has both opened my eyes and narrow downed problems. 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. It says "Your pressure washer pump is a sealed pump, you should never have to change the oil." So I installed it, however I am getting a really bad idle surge. Wasn't sure how it got into the line but when I checked the inlet filter screen, it was badly clogged and when somebody tried to clean it out with a screwdriver, he/she punched a hole in the screen.

I found that if I set the choke lever one detent position toward Choke from the Run position, the engine will run smoothly whether or not the engine is under load. I think it's becasue of a leaking spraygun though. I'm aware the the engine does surge every now and then of course depending on water pressure etc. Always disconnect the spray wand before cleaning it. Is this a concern? The carb now has been cleaned about 5 times,it looks brand new. Is it the unloader valve not opening at all or is it opening and closing too fast?

What happens is when the engine achieves the desired rpm's, the governor closes the throttle. 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 But, the second you let off the trigger, the pump surged. Both the water pressure and throttle is hunting and surging. I had the same issue with my K5. It is telling the operator that the water supply does not meet the pump’s recommended flow rate. These are different in appearance and location on different machines, so you may want to go to sears website and look up the parts diagram for your unit to identify the unloader. He left gas in it and now when he goes to use it, it won't idle well. I was given a pressure washer with a Honda GCV160 engine that did not start. All information is provided "AS IS." The governor restricts it then the cycle starts over. Craftsman 3000 2.7 max with a Honda OHC engine GVC190. This washer has the most gaskets I have ever seen on any machine in my life. Gas and Electric Pressure Washer Troubleshooting Tips for 20 of the Most Common Pressure Washer Problems. One good tip to remember before going through the steps below is to have If when the trigger is pulled, the pressure starts out strong, and then deteriorates, the problem is with the surge. For some reason when I tried to fully remove his main jet it loosen a lot but didn't come fully out. Since they're obstructed by varnish, it starves for fuel. The manual specifically states NOT to mess with the oil. If you fancy stripping down your Karcher pressure washer to see if you can find the problem and fix it yourself the second video below should be useful. It starts pretty easily and runs ok when choked, but once the throttle is opened, it's baccccccccckk. I will check more into that and replace the o-ring on the hose if necessary and see if that helps the problem.


But generally, if the engine will run, albeit poorly, Seafoam can clean out the varnish.Hey Jason, Thanks a million! on the engine. The gaskets have been remade. By logging into your account, you agree to our This can be confirmed when the trigger is released and the pressure builds back up to a normal level.

When I released the nozzle it started surging a little, but not nearly like before, and then stopped all together. Pressure washers are not infallible. So instead of messing with the carb I decided to buy a new carb for $30. If the water supply is acceptable, check for leaks around the supply fittings.When the trigger is depressed and nothing happens at all, it is likely the nozzle is clogged. Sometimes it acts normal under pressure, but once the trigger is released, back to constant surging. There are 20 pressure washer issues that are by far the most common. Did you replace the intake gasket? I cleaned the carb to like new condition, replaced the needle, seat, and float. Now that you guys got my SEARS GT 16 running I can start on my Wards rider that I use for mowing grass. 752630 This is a great forum!!!! He left gas in it and now when he goes to use it, it won't idle well.
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electric pressure washer surging at idle

I'm still not sure whether or not the main jet is partially clogged. 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. A Karcher with a Honda engine 2600 psi Gcv 160 5.5 HP. The pressure in the outlet line bleeds off as it leaks until the unloader kicks the pump pressure back on, but then it only takes a fraction of a second to build up pressure in the outlet line again, so it quickly unloads once again, and continues this cycle. I used the high pressure nozzle and it ran well with no problems. Check the unloader and repair or replace it. Sears gt twin 16 hp So I kinda adopted the "If it aint broke" theory If that is the case, why the sight glass? If any of these measures fail, professional repairs may be needed, unless the problem can be determined and the cat pump parts list can be used to order replacements.Make sure you know how to troubleshoot your pumps so that your car wash is always performing at peak levels, so your customers will always come back to you.All Material ©2016 by Kleen-Rite Corp. All Rights Reserved.Should a Self-Wash Car Wash System Be Run in Bypass Mode? By logging into your account, you agree to our I took it to a Karcher 'specialist' shop in Watford. Jason I thank you, my friend thanks you.

Check that the water supply and inlet screen are unrestricted. Do you think if I put some lube on, it would smooth out? It hunts and surges. I like to disassemble the piston/valve assembly and clean it up, replace o-rings if needed, and then I coat it with vaseline and reassemble. Rpm's drop, the throttle opens, the engine now draws from the less obstructed main jet, rpm's recover, throttle closes, repeat ad nauseum.Thank you Jason B. I actually wanted to hear from you since your advice has both opened my eyes and narrow downed problems. 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. It says "Your pressure washer pump is a sealed pump, you should never have to change the oil." So I installed it, however I am getting a really bad idle surge. Wasn't sure how it got into the line but when I checked the inlet filter screen, it was badly clogged and when somebody tried to clean it out with a screwdriver, he/she punched a hole in the screen.

I found that if I set the choke lever one detent position toward Choke from the Run position, the engine will run smoothly whether or not the engine is under load. I think it's becasue of a leaking spraygun though. I'm aware the the engine does surge every now and then of course depending on water pressure etc. Always disconnect the spray wand before cleaning it. Is this a concern? The carb now has been cleaned about 5 times,it looks brand new. Is it the unloader valve not opening at all or is it opening and closing too fast?

What happens is when the engine achieves the desired rpm's, the governor closes the throttle. 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 But, the second you let off the trigger, the pump surged. Both the water pressure and throttle is hunting and surging. I had the same issue with my K5. It is telling the operator that the water supply does not meet the pump’s recommended flow rate. These are different in appearance and location on different machines, so you may want to go to sears website and look up the parts diagram for your unit to identify the unloader. He left gas in it and now when he goes to use it, it won't idle well. I was given a pressure washer with a Honda GCV160 engine that did not start. All information is provided "AS IS." The governor restricts it then the cycle starts over. Craftsman 3000 2.7 max with a Honda OHC engine GVC190. This washer has the most gaskets I have ever seen on any machine in my life. Gas and Electric Pressure Washer Troubleshooting Tips for 20 of the Most Common Pressure Washer Problems. One good tip to remember before going through the steps below is to have If when the trigger is pulled, the pressure starts out strong, and then deteriorates, the problem is with the surge. For some reason when I tried to fully remove his main jet it loosen a lot but didn't come fully out. Since they're obstructed by varnish, it starves for fuel. The manual specifically states NOT to mess with the oil. If you fancy stripping down your Karcher pressure washer to see if you can find the problem and fix it yourself the second video below should be useful. It starts pretty easily and runs ok when choked, but once the throttle is opened, it's baccccccccckk. I will check more into that and replace the o-ring on the hose if necessary and see if that helps the problem.


But generally, if the engine will run, albeit poorly, Seafoam can clean out the varnish.Hey Jason, Thanks a million! on the engine. The gaskets have been remade. By logging into your account, you agree to our This can be confirmed when the trigger is released and the pressure builds back up to a normal level.

When I released the nozzle it started surging a little, but not nearly like before, and then stopped all together. Pressure washers are not infallible. So instead of messing with the carb I decided to buy a new carb for $30. If the water supply is acceptable, check for leaks around the supply fittings.When the trigger is depressed and nothing happens at all, it is likely the nozzle is clogged. Sometimes it acts normal under pressure, but once the trigger is released, back to constant surging. There are 20 pressure washer issues that are by far the most common. Did you replace the intake gasket? I cleaned the carb to like new condition, replaced the needle, seat, and float. Now that you guys got my SEARS GT 16 running I can start on my Wards rider that I use for mowing grass. 752630 This is a great forum!!!! He left gas in it and now when he goes to use it, it won't idle well.

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