Re: honda c90 tuning
I AGREE ABOVE DO NOT PUT CHINESE PARTS IN SUCH A LEGENDERY ENGINE !
from past experience with my C70c i have found the C90C block with the Honda C70 head ( E22 STAMP BIG VALVE ) works best you would get power & TORQUE with the reliabilty but doing all this is not cheap.
if you have a limted budget just buy a lifan 125cc engine and slam it into the cub...
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