Hi I'm new to the forums and anyways I made my account because of my blaster. I have a 2000 model with a fresh top end and a twin air foam air filter. I have set the air mixture screw all the way in and then took the thing out 1.5-2.5 screws out and it still won't pull right. If I give it gas full throttle in neutral it just bogs out. If I remove the airbox lid it runs like a pro. pulls like a boss. No bottom end power it seems. Its 5 pm here and I need to fix it by 8 pm. Please someone help!