I went for a short run yesterday afternoon in my GenIV. I backed into the driveway and shut it down. After about 5 minutes I started it up to put it in the garage. As I was backing in I noticed smoke coming from under the hood in the location of the catch can. I opened the hood and that is where it was coming from. I have never noticed this before. At idle it there isn't much smoke but when you rev it up it more smoke comes out. I am hoping I am wrong but it looks to me like I may have a broken ring. I have not heard of this being a problem on the Gen IV. Any ideas? By the way there is no PCV system on the engine.