I was given a Vanguard Vtwin 18HP engine that is on a unit with a 3000 PSI water pressure washer. I did some maintenance on the engine and it runs fine. I ran the unit with water going through the pressure washer. I do not have the hose or wand for this unit. How do I know if the pressure washer is good and functioning properly? Water does come out of the pressure washer when the engine is running. Do I have to connect the hose and wand to make sure it works? S.E.R.