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New here &new TW owner (jetting question)

3758 Views 24 Replies 7 Participants Last post by  yz250f4ever
Hey my name is alex I am new to this forum So i want to start off by saying Hi. I just had some quick questions, i am a new TW200 owner, i just picked up an 03' about 5 days ago. My TW's exhaust was rotted out from just being used it seems like, so i purchased a DG exhaust for it, which greatly improved the sound and even added some power. This TW had never been modded or touched before I bought it, just regular maintenance done for a daily commuter was what the previous owner did. So as of right now the entire bike is stock besides the pipe. I noticed it back fired/made a pop noise a couple of times when i was riding it, and i have been reading these bikes tend to run lean as is to meet emission standards. I was wondering what would be some base line jetting sizes to go off of for my bike with a pipe in California at sea level? I live in dana point, CA its a city pretty much right on the ocean, my plan is to ride this bike for fun up and down PCH (pacific coats hwy). I already plan on doing the air box mod (taking the snorkle out) and shimming the needle, I just wanted to know what stock jetting would be in my carb and where to go from there please? Thanks in advance, have a good one.........Alex
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Given your varying elevations over there, you sound like the perfect guinea pig for a product I've wanted to see on a TW for years now.

Look into Dial-a-jets.
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