I just rebuilt my 2011 brute force 750's engine as it spun a bearing and blew a piston. I bough i in that condition about a month ago. But after I got back from a short ride there was a lot of steam in the exhaust and water leaking out of the front exhaust manifold where it meets the head. The engine was pretty warm but not all the way up to temp. whenever it starts steaming the engine bogs down and dies. Does anyone know what is causing this? Thanks. Here is a video of the water leaking out of the exhaust.