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50cc to 70cc questions

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I am thinking of bumping my boys bike up to a 70cc with these parts what do you people think of this. I think I would need a bigger carb or just bigger jets??? To me my son is not ready to go to the 88cc or to a bigger bike but what to give him some more punch. Please let me know what you think of this.....

http://dragonracingparts.com/dratv/xr50to70coki.html

I would buy all three parts. whats cool is the Jug says 50cc on it even though its a 70cc...

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Would love to give comments, but not sure what if you are trying to get a get a porsche out of a vw :cry:. If you need power or speed, time for a big bore (88)kit, cam, and carb. My daughters 70 is no faster than the son's 50, just taller. And if you need more fuel, you don't have much room to grow on that 62 jet.

But, this is a cool idea if it turns out to be a somewhere mod between 50 and 88 kit. I would do a pipe, carb, filter and get onto some fiddy websites for more ideas as well. Good luck!!! :cry:

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