If your only mod is to be an exhaust - get a stock carb. It will actually serve you better than an aftermarket or a bigger one. There is an abundance of them around. If you go with a pipe you may have to adjust main jet size but that's it.
This is a discussion on KLX110 aftermarket carb recommendations? within the KLX110, DRZ110, TTR90 forums, part of the General Talk category; I have a 2009 KLX110 that I am looking for an aftermarket carb for. Everything is currently stock and I don't imagine doing anything outrageous ...
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