Wow! Great Mod. 90cc Naraku Big Bore Kit on a Maddog 50cc 139QMB GY6. Way Faster
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I installed and tested the Naraku 100.52 89.3cc BBK and Big Valve Head on a IceBear Maddog 49cc Scooter. I was torn between this and the Taida 88cc kit. Both are made in Taiwan and should be good quality.
How to Install a BBK: • The Complete and Definitive Tutorial ...