ProForce PWC102350 2,350 PSI 2.3 GPM 163CC MagnaForce Gas Powered Pressure Washer will not start

I would first start with fresh gas

Sounds like a bad unloader valve. Do a search on "pressure washer unloader valve symptoms". When they are faulty there will either be little pressure or it will stop an engine abruptly. The engine will not just die down as it you were turning it off. It would stop cold.

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.

The choke reduces the air flow into the carb. If you are having problems with the choke off, it means that not enough fuel is getting into the engine and it is running lean. When you choke it, the reduced air flow causes the mixture to be correct and it runs fine.

http://www.husqvarna.com/us/support/

pump lacking lubricant ,some are sealed.remove pump and inspect

sounds like the engine is over heating have you checked the oil?remove the top cover from the engine and look for a mouse nest

The first thing I would check would be the oil level, to make sure you didn't put in too much oil. If the oil level is correct, it could be a stuck piston ring, letting oil blow by the piston, and out the exhaust. If this is the case, you are going to have to tear down the engine.

Hope this helps!

We power washed houses for years with a 2400psi machine. The machine weighed about 90 pounds. 1 strong man could pick up the weight, but usually it took 2 men to unload it from the trailer.

A small machine can advertise 2400 psi ... but that is for 3 square inches at a time. The heavier machine shoots a 10" or wider swath of 2400psi.

We ran our machine twice a week for years. We had a honda engine. I'm sure the briggs engine is good. I wouldn't buy a used machine... unless the price was low and it started on first pull. Electric starter on your power washer might be a repair-waiting-to-happen because it is constantly exposed to water and dirt.