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Post by mmsscooters on Jun 8, 2014 13:43:55 GMT -5
Jerseyboy is right, if you run a cam you will pull more air, which means you need to match the fuel. A9 is the same whether its 50-150cc thats just the rating of the cam, an A9 is good for top end power which is good for most scooters since you develop your peak h.p. at about 6400rpm
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Post by mmsscooters on Jun 8, 2014 13:41:31 GMT -5
That works but try .05mm or .002in, works great on every gy6. .08 you will have a lot of valve chatter and slightly lower compression
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Post by mmsscooters on Jun 8, 2014 13:36:09 GMT -5
On a Kymco agility you get a huge gain with a 47mm bbk, the only problem is the CDI unit, it needs to be changed to an un-restricted model which are not the easiest to find. Also the correct carb and jetting One of my customers has 37000km on my 47mm bbk, after CDI replacement it will do 45 on flat ground with a 220lb rider
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