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When you put a big bore kit on a bike, you have to make sure that you have the resources (books, online research, knowledgeable friends, carburetor jets and parts) to TUNE THE CARBURETOR after the BBK is installed.
Either find someone who specializes in this type of scooter upgrade to do the tuning, or spend the time researching it and do it yourself (not recommended if its your only transportation), or go back to stock.
(Personally, I recommend just getting a bigger bike and not dicking around with performance enhancements. Much less time wasted.)
A performance CDI (in the absence of serious engineering to determine if a different ignition firing strength is an improvement) is a total waste of money (unless your old CDI was dead).
That all being said, if your carb is using the stock jet and you're running a BBK/performance carb, you're probably running the bike too lean, which could VERY potentially destroy the engine, depending on how lean it is running.
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