My 2700 psi Generac pressure washer will not start.

Have you replaced the air filter? Without the air filter the engine is getting enough oxygen to support combustion. With the air filter it does not get enough oxygen. If you have not replaced the filter it sounds like it is time to replace it. If you have been "cleaning" the old filter and reusing it, small particles may be lodged in the filter, reducing the airflow. Is it a pleated paper filter or a oil dipped foam filter. If it is a foam filter, have you cleaned it? If you replaced it was it a store replacement or a piece of foam you obtained and made it fit? Foam can be closed cell or open cell , both look similar but closed does not allow airflow and open does .

I found a small long spring disconnected from my throttle which made the engine run rough It is easy to reconnect and makes a big difference in engine performance. also, if there is a very dirty air filter-oil/dirt it will not start-replace filter.

Previous owner had way overfilled crankcase oil. Oil had gotten into carb and clogged air filter. Drained oil to correct level. Ran engine but kept cutting off-see above. Took off carb cover cleaned housing and ran without air filter-ran fine. Unsuccessfully tried to clean air filter with gas-did not work. Apparently, the engine could run just long enough to exhaust the air in the old filter and cut off which is why it would start back up after a few seconds. Bought new air filter-whole thing-about $15 at Carquest. Put in some carb cleaner and installed the new filter and it runs perfectly.

To conclusively diagnose the problem though remove the air filter and spray a little carb cleaner in the air intake and try to start the unit. Most of the time, I have seen fuel system varnished up on these units from sitting for a long time. has this been sitting with fuel in it? Fuel actually starts breaking down is a matter of 30 days. I would drain the fuel and try fresh gas, and then cleaning the carburetor, The carburetor on your unit is fairly easy to rebuild.

It's surging... your carburetor needs to be serviced. It's not giving the proper air fuel ratio to the engine...

BriMaxSmallEngineRepair
Gibbstown,NJ

id your engine model and consult the briggs site........
the oil in the pump is filled during assembly so it doesn't have a nice pair of fill and drain plugs

briggs :
http://www.briggsandstratton.com/eu/en/

the only thing i can suggest put your pressure washer on level surface and start fill the oil when gets to the right level the oil start coming out

This could be your unloader valve taking in account the engine isn't surging. Does the engine run smooth? Do you have at least 50 psi water pressure feeding the pump? Inlet screen clogged? ALL tips act same way or no change?

One of two possible problems: either the hose is plugged or the fitting where the hose goes into the down stream connection is plugged with dried up soap. This happens after winter storage. Clean out with pipe cleaner or air pressure. My problem was was dried soap at connection.

john
suffern,ny

Replace the gas, check the air filter is not clean.