honda pressure washer trouble
you are welcome. i'd start with drying out air filter and pulling spark plug out. then, give it a few kicks with cord. watch spark plug hole. is there any water spewed out? if so, you did hybdrolock it, and must disassemble the engine to clean it all and assess for any damage. hydrolocking can be brutal. if not, maybe you simply spilled some water on hot exhaust, and it LOOKED LIKE steam came out of exhaust. in this case, filter could have gotten wet. but then again, if your oil foamed out, you most likely have some major gasket blown, that let water under pressure into any place it was not supposed to go.
you prolly know this, but while engine is working, water flow through the gun should be never stopped, or internal damage may occur. i pressure washed for 2 days this weekend, so yes, well familiar.