Jetting the carb
DTX
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Hey, guys im new.
I just got a yamaha dt125x from 2006, with a custom exhaust from romeu Henriquez. My question is wich jets i should buy for this exhaust? The bike is stock except i changed the reed valves to carbon ones en putted a spacer on the intake. Hope you guys can help me out
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Unless required, I'd leave the jetting alone.
Even DEP recommend just leaving the jetting alone.
Once you get the pipe, warm the bike up and do a plug chop. If it's hesitant, bogging or the plug is not golden brown, then consider a rejet.
If you're running the stock DTX carb, then 210 is the stock jet. The earlier models came with 240 main jet.