i have my carb mixture screw all the way in on my blaster after just doing a port and polish, i figured it would need more fuel but the exhaust is still smoking a little bit and it smells rich enough and the plug looks good, anyone elase have their mixture all the way lean?, oh and i removed the tors but the only way i can get it to idle is to adjust the cable up at the thumb throttle, the screw on the tors does nothing.