88 fourtrax running rough

Haven’t posted in a while because my atv has been doing pretty well. But today I took it out and washed it and now I’ve got an issue. It ran just fine before I washed it but afterwards, I drove it for about ten seconds and then all of the sudden it stopped running properly. Even with the throttle wide open it wouldn’t run faster than an idle speed. I thought maybe I got some water in the fuel or air intake…? Any ideas?