You have a LARGE air leak (vacuum leak). Proper carb setting is 2-1/4 to 2-1/2 Turns out from seat.
Using a spray bottle of water, start bike and then spray around the intake manifold and vacuum hoses and listen for DECREASED rpms. When the rpms decrease, you've found you leak.
Also, make sure your DIAPHRAGM in the carb is seated properly, and sealed and free of rips in the membrane.
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2011 Roketa MC-23-150
4T 150cc 157 qmj
24mm carb w 115 main jet and paper cone air filter
Manual petcock w Tygon fuel lines
Scrappy Dog Scooters Retro-slash stainless straight-thru exhaust
RED spring clutch
Adjustable CDI (brand unknown, it's blue and red and works great!)
KOSO high performance variator w 12g sliders
Gates Powerlink 835-20-30 belt
GPS verified 65mph on flats.
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