Dave. Do you work on the 3.0L 250 XS motors? Got an issue with mine. Thought I would ask here first. Gotta take it to someone. Here's what happened. Running around 5000rpm when it revved up and shut down. Thought I broke a prop off but no. Tried to fire it back up and starter engages, but fly wheel seems to be locked up. Pulled all plugs and they all look the same , no metal.