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Your plug is black, therefore, your bike was running extremely rich.
Do not adjust deceleration needle until you have determined if adjusting your mixture screw is sufficient. Needle adjustment makes very broad adjustment.
When adjusting deceleration needle, raising the washer creates LEAN CONDITION, lowering the washer creates RICH CONDITION.
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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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