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If you can find a reputable place to do it for cheaper then buying a 38mm carb then go for it. I looked around and after paying for the boring and shipping both ways, it was cheaper to buy a new carb. Plus I had zero down time, which was important because I was in the middle of a race...

I get my fuel from a local dealership, CC Powersports in Louisville, KY. I've seen some online places to order it from. I have thought about trying the SX2 but my engine is stock internally and I it takes me a couple months to go through 5 gallons of fuel and I'm afraid that it will go bad before I...

I recently found this thread and ordered up a 38mm carb for my 2012 250SX. Really added some much needed over rev and keeps pulling strong instead of flattening out. Only reason I decided to post in here was to say that with my research, I suggest ordering a carb from a 2012 150SX. Not only are they the same...