This week I Kreem'd my tank cause I had a couple of pin holes. Overall I wouldn't recommend Kreem, like many others on the internet have already said. I feel like it isn't going to hold for that long, the coating came out really thin no matter what I did. I think this will especially be a problem with the pitting present in the tank. I only used Kreem because a buddy got a random package delivered to his house (addressed to him) with all sorts of dirtbike shit and Kreem that he didn't want.
I also got an RD80LC exhaust from eBay, there's a couple German sellers on there with them. All in all it was like $180 shipped from Germany and took a week to get here. Seems like the power band hits a little lower now, closer to 7500 RPM (thank God), and the red line is like 13-13.5k rpm. It's definitely got some more torque now as well.
As you can see in the picture my dumb ass zip-tied the exhaust to the swingarm which resulted in several snapped zip ties until I realized why it wouldn't work. I have it zip tied to the frame now until I make a bracket. The zip ties work pretty well though.
I have a cylinder coming in that I haven't seen anyone talk about anywhere except Portuguese forums. No idea when it's gonna be here, but it's an Athena 80 kit, listed on the Athena site as fitting a DT50/YSR so it should work. Worst case scenario it's a DT80 stroke kit and I have to swap cranks. But I did the math and with the stock DT50 stroke it's like 77cc, so I have high hopes it'll fit.