What are some options for big bore kits for howhit gy6 150cc engine? Big Bore Kit For 150cc Scooter
GY6 205cc H20 Big Bore Kit - ProBld Finally a good carb swap for GY6 engines!!! 2015 TaoTao ATM50-A1 scooter with 47mm BBK, A9 Cam shaft, Rolling Wrench shows you the difference between a stock 50cc honda ruckus scooter. And a 180cc big bore gy6. We installed a ...