NEED HELP 80cc bicycle build won't accelerate when pulling throttle

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Commonly overlooked aspect of breaking in these engines is the need to check and re-torque the fasteners on them. In particular the head and cylinder nuts, 144inch pounds, and the intake and exhaust bolts.
So in layman's terms make sure every bolt on the motor is tightened
 
Commonly overlooked aspect of breaking in these engines is the need to check and re-torque the fasteners on them. In particular the head and cylinder nuts, 144inch pounds, and the intake and exhaust bolts.
 

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