I have a Polaris 400 2-stroke I was running it earlier and all the sudden the motor locked up and I thought maybe the head had warped because it's been overheating but I got the motor partially on locked that acts like it's hitting the cylinder wall do you think I have a warped head or what else do you think might have got damaged in my motor somebody I talked to suggested water pump but I thought maybe cylinder head

 

I would really appreciate the help thank you all very much you are very helpful I've read a lot of comments on this site so was hoping you could help me out

 

Welcome to the forums.

No expert, but if it sounds like it's hitting the wall, you're going to want to at least take the head off and inspect it. Especially since it locked up. Sounds like it could be more than just a warped head.