I have a older simpson 3000 power washer, 11 hp honda,been a great machine, owned since new, seems like the pressure is building up to a point where it has blown 2 hoses, i turned the throttle down and started to wash, engine quit after about 15 min. it restarted and quit again, tried starting fluid , nothing, what might be the issue

SOURCE: pressure washer won't build pressure

The problem sounds like its in the handle.. trigger mechinism

SOURCE: honda powered gx160 model pressure washer wont start

Buy a new plug, drain out all of the old gas and put in new gas, and take a look at the air cleaner. If the air cleaner is dirty replace it. There you now have a good spark, good fuel and good air. The engine should start. If it doesn't get some carberator cleaner spray and some starting fluid spray.

SOURCE: pressure surge on and off for 2 seconds w/ new Karcher

It can be one of three conditions,

1. The water supply in is not sufficient
2. The pump oil is low
3. The seals are bad in the pump.

SOURCE: Honda Pressure Washer HP 5 not starting

You can try spraying some carburetor cleaner into the carb. If it starts for a minute, your carburetor need cleaning. When you added new gas did you remove the old gas first? Is the air filter clean?

SOURCE: Pressure washer with Honda GX160 5.5 HP OHV-Starts easily but...

what about the linkage between the governer and the carb. Is that working and not binding?