That was a big oops lol. At least it didn't hurt anything else. What cell phone are you using? Excellent pics.
I had a 89 kx125 back around 2000. I know there was a big difference if the powervalve was working or missing. For some reason the powervalves in the 125 would only last a couple months. I pulled it apart the first time after I bought it and they were just GONE! very little remnants left. The second time they were about 75% there. I never figured it out. It never overheated but the valves melted away or something. Sold the bike because of it. I would imagine if the valves don't work in the K5 that it would be like riding a 250 or even a 125. Never had that issue yet.