Now, I just got a new pressure washer hose and tightened up some loose fittings on the pressure washer that made it leak water and now the motor doesn't want to start unless the water is off.
Once I turn the water off then the engine will turn on and run and when I hurry and turn the water on it causes the engine to stall.
I'm pretty sure you don't want to run the pump without water in the pump.
I also have no idea what others do (or what the directions say) but when I start my washer, I.....
Have the hoses and wand connected to the pressure washer.
Turn the water on at the spigot so you have water at the pump.
Put a water bottle or something else in the grip to hold it open and let water pass through the pump, and through the wand unrestricted, without building up pressure. Let the water run till there is no air coming out of the nozzle, just water.
Sit the wand on the ground next to the pump with the wand aimed in a safe direction.
I put one foot on top of the wand to hold it so when the engine does start, you can control it and the wand doesn't come to life like a snake on the run and try to get loose and spray everything.
Make sure the run switch is on, gas is on and if the engine is cold, the choke is on.
Pull the starting rope.
It's a Honda so if it doesn't start on the first pull, check starting steps. Switch, fuel, choke. If it doesn't start on the second pull, take it to the shop as it's broke. It's a Honda.
As soon as the motor starts, I reach down and grab the wand to control it, release the choke when the engine is running well and then take the water bottle out to release the grip after it's been running for a few seconds. Having the grip hold open, allows the engine to get running without having the resistance of the pressure building up in the pump while still having water in the pump so it isn't running dry.
Right or wrong, that's what I do. You could always look and find an operating manual for your particular unit too.