I have a 2006 tank 150cc scooter, boogs down, and now wont start

Follow your throttle cable to the carb. You'll see a screw that pushes a pulley down raising your rpms

low fuel level or blocked main jet

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Your scooter has a smaller engine than the 150cc scooter perhaps?

Seriously, without proper details, how can anyone help with this?

People this is a scooter. The problem is that your idle screw on the Carb needs adjustment. The idle screw can be adjusted with a Philips screw driver. Follow your throttle cable to the carb. You'll see a screw that pushes a pulley down raising your rpms. This will lower your idle causing the rpms to drop and since your scooter transmission is propelled my higher RPMs the bike will stop thrusting you forward when you stop at red lights.

start off with basic settings of 1 1/2 turns out on both of them, then adj the "L" which should be closest to enjine to where you give it throttle it does'nt boog down on acceleration then get ready to adj the "H" which is closest to air filter, keep in mind you should always have a new spark plug and new or clean airfilter on the machine before attempting to adjust it, so anyways bring your saw to full throttle and adj "H" to where it 4cycles just a little, in otherwords run it in a little till peak sound(rpms) then back off till just is on the edge of slowing down or garbling a little. then go back to low speed and make sure it is o.k. then cut some wood at full throttle and see if maybe you can open it up some more with out loosing power. remember a hair rich is better any day than a hair LEAN! Good Luck 2StrokeJim

change the coil its breaking down under pressure dont be fooled by it giving a good spark its only when its hot that it breaks down

overhaul of carb needed, check the vaccum advancer for wear n tear, rapace f necessary fo

Assuming the bike is not fuel injected, you either have a stuck slide, a throttle cable out of place such that it is lifting the slide or a really bad manifold air leak. Tighten the clamps holding the carb to the cylinder and the bolts holding the manifold to the cylinder. That should eliminate any air leaks. Inspect the throttle cable, especially at the ends where it connects. Remove the air filter and look into the center of the carb. Does the slide in the throat of the carb open and close properly? Below is a generic carburetor. Your carb will be similar.