I just picked up a used pressure washer at a yard sale. It's a DevilBliss exh2425
pump number 0000270183, model 18219 270183. Machine looks like new except for the usual been in storage grime. The motor is a honda gc160 5.0 motor, starts right up and runs like new.
Problem is that the dang thing only puts out slightly more pressure running than it does off. I tried the manufacturer website and found all the manuals and parts diagrams but no useful help when it comes to lack of pressure. I suspect it is just a stuck valve or something.
What makes this thing tick and how do I fix it?
