I just got a new pressure washer with a Honda GCV160 engine. After following all the start-up instructions.
Adding oil, gas, Run switch on, fuel valve on, pulling out the choke it started the first pull. After about 3 mins it stalled out and I couldn't re-start. I took it back and got a new one and the same exact thing happened. Has anyone got any advice ?

who made the pressure washer? if it isn't anything you did wrong, ( make sure by reading the manual) i'd either try till i got a good one, or get my money back and try a different manufacturer... that said it may be a switch or something wrong, low oil switch, or a fuel lines crimped, something, but since its new, i wouldn't dig into it, since its under warranty.

Did you have water running to the pump? You can not run pressure washers without water to the pump. If you didn't have water the pump will seize,