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TTR 125 jetting

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hey there

i've got a stock 03 ttr 125l, :D and for my birthday, i;m getting a two brothers exhaust for it.:) and i wanna save my parents the trouble, so i wanna be able to tell them what size jets to buy. everyone says 112.5 main :ride:

but i'd like a second opinion

thanks a lot :worthy:

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My wife has an 05 TTR-125LE with a FMF-Powercore 4 pipe and the bike runs best with a 110 main and 17.5 pilot jet. I tried the 112.5 main but did not seem any better than the 110. It will also depend on your altitude, we ride between 600'-1,800 above sea level. I would buy a couple different sizes as they are cheap anyway. Good luck!

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