I got my ct200u about 3 months ago, everything was running good and a couple days ago it just stopped accelerating, i took the governor out about a month ago and never revved it to crazy limits. I took off the side cover, checked valves. It has compression (around 90psi), spark is good, carb is good( ive swapped it with a good working one). It has no torque when i sit on it but it revs fast with the back tire off the ground. I'm pretty stuck at this point and no clue what could be wrong.