Install is done, first few rides have been run and here is what I have found...
The NCY 72cc bbk for the gy6 fits the kymco agility 50. The person who installed it had no complaints about it. It works.
The scooter is faster, as I alluded to before. 5mph faster. Easily. Some cases its 7-8 mph.
The scooter acclerates much faster. 0-20/30 happens several seconds faster.
Scoot climbs quicker too.
Cruises at 40ish, and by ish I mean 40-42, where before it was 35mph. GPS verified.
I am happy with the kit but...
The but is that I was ok spending the $300 for the kit and install. Will you, can you, spend that and be ok with the modest increase?
Some of us might not be. As for reliability... I can't tell yet.
I think if you need a much faster scooter then get an agility 125 or some thing similer but for what it is, and what I do with it, I love the change.
the pic is the old piston. might need to get some seafoam in before too long.