1500 is only like 300rpm higher than idle. Why did you swap out the stock 2000rpm springs for 1500rpm springs? That literally the opposite of what every other tuner does to improve take off/hill climbing.
Change your jet back to 80, and install 2500 or 3000 rpm springs.
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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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