I have a 2014 rzr 4 800, I had a bad water pump seal so I replaced it with a new one. I lifted the front up about 2 foot above the engine. Every one is telling me unscrew the vent screw just below the exhaust and fill until it comes out the screw hole. I filled until I couldn’t get any more in the radiator fill cap, it wasn’t ever coming out that hole. So I started it and tried to let it warm up and kept a close eye one both the level of fluid and if any came out the screw hole. It was only when it got to about 205 degrees it started coming out that screw hole. So thinking it was full I put everything back together and let it idle on flat ground it would get up to 204 then the fan would kick on and cool back down, like normal. So I get in to take it for a ride and hit the gas petal and there’s no power. It didn’t do this before! Almost like it’s in a safe mode or something, but it’s not over heating or anything. No warning lights or no indicator telling something’s wrong. Any one have any idea what could be causing this? Do you think I didn’t get all the air out of the system?