lean? cutting out at high rpms in low gears

[J-Madd]

my dirt bike did that like in the low gears in the upper rpm it starts to cut out. i figured out the problem in the first couple gears like on my bike it was mainly 1st and some times second depending on the conditions of riding. i tryied playing with my carb and jets nothing so i finally figured it out , when the bike or any bike is in 1st or 2nd the motor is under its heaviest load so there is the most compresion you can get in the chanber so what was happening was my rings were worn so it was popping because it builds and the compressed air blows buy the rings so it wants and tries to go but there just isnt enough compression. you can try a compression check and find out what your compression is and check both cylenders they should be about the same. but the thing is i did that to my bike and it was all good but when i would run it, it sucked so i just said screw it and changed them its been fine ever sense.

I forgot to mention compression numbers. I thought the same thing at first. I've got close to 175 psi in each cylinder.