125-200cc CR125 and 144 scored piston and cylinder (Pics and vid)

Thank you for the info. I have a question about doing a leak down test. Will air leak out due to the power valves? Giving me a bad reading?

Just to clarify, I didn't mean to imply that Maxima oils are bad, I honestly believe all oils are good for their intended purpose.... I just think there might have been a compatability issue somehow and would switch oils AND fuel sources to rule out the problem.

Of course, I have been using Klotz R50 so it must be the best!JK

Maybe I will mix Amsoil and Klotz? That should be the ultimate luberfacation! I was running 91 from Shell- "V-power". Contacted a replating service. I will send it off soon. I haven't ridden in wayyy too long.

Klotsoil. I like it!

Got the bike back together. I left the pv linkage cover off. Should I be able to see it move during idle or quick blips?

no the power valve opens at around 6000 rpm

For comparison, my own '12 144 would require a 480-490 for hard sea level desert running. And don't forget the needle... what needle and clip position have you bee running?

The needle is 6DEY15-74. The clip is in the 3rd notch. I've put 15 hours on the rebuild without issues since going to a 490 main, and 40 pilot. My pro circuit pipe had an exhaust leak at the bracket weld. How bad can this effect the bike?