I have a Chinese made 125CC Manual dirt bike. Was idling fine yesterday but today it starts and idles really high. Tried adjusting the idle on carb and it worked, but when i gave it little gas it kept at higher rpms. After that i killed it and tried starting it up again, it would start then rev then die in about 2 seconds. Checked the throttle cable and its not sticking, took apart carb and its perfectly clean. Any ideas?