My neighbor asked if I could look at his Craftsman Quick Start Pressure Washer which he tried using for the first time the other day since last year. It has a Briggs and Stratton 3.75 HP engine and a pump that does 2000 PSI with 2.0 GM water pressure. Not sure exactly how old, but I think it is at least 15 years old or more. See the information below for the numbers, model, etc.
The engine starts well but "surges" when idling or when the throttle is opened to run at higher speeds. Even with the throttle opened all the way, it will bounce up and down in RPM's and then stall eventually after a couple of minutes, or when the trigger is squeezed to spray the water.
I removed the air cleaner, and the throttle opens and closes back and forth with no effect from the springs that I guess are supposed to keep it open when the throttle is left in the open position. I can get it to run at a high rpm by holding the throttle plate, keeping it from moving back and forth. The springs appear to be pretty loose, and I bent one of them and it does keep the throttle opened by itself, but there is no adjustment of speed now because the spring is keeping it opened.
I guess I will try and find some new springs as a first step and replace the two there now. Any other ideals? Air cleaner is a bit dirty and I will replace that also, and the spark plug is set at .030 per the owners manual I found on line and is clean.
Model 10D902 Type 0133 B2 Code 03042152
The engine starts well but "surges" when idling or when the throttle is opened to run at higher speeds. Even with the throttle opened all the way, it will bounce up and down in RPM's and then stall eventually after a couple of minutes, or when the trigger is squeezed to spray the water.
I removed the air cleaner, and the throttle opens and closes back and forth with no effect from the springs that I guess are supposed to keep it open when the throttle is left in the open position. I can get it to run at a high rpm by holding the throttle plate, keeping it from moving back and forth. The springs appear to be pretty loose, and I bent one of them and it does keep the throttle opened by itself, but there is no adjustment of speed now because the spring is keeping it opened.
I guess I will try and find some new springs as a first step and replace the two there now. Any other ideals? Air cleaner is a bit dirty and I will replace that also, and the spark plug is set at .030 per the owners manual I found on line and is clean.
Model 10D902 Type 0133 B2 Code 03042152
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