TTR125 Carb Problems

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1/19/2019 3:26 PM

Hi, I have a 2002 TTR125 and I just put the OEM carb back on it off another bike but the problem is, it keeps leaking fuel as if the float or something were stuck. I have cleaned the needle and cleaned and specifically made sure the float wouldn't stick but is there any ideas? Not sure if it affects it, but when I would get the bike started with starting fluid and give the slightest bit of throttle it would die. Thanks.


1/20/2019 2:18 PM

The stock carbs are known to be picky with set up. I put a new needle in my 05 to stop the leak and has worked perfectly since.


1/21/2019 2:46 PM

New float needle and you'll be done.


2017 RMZ450
2005 YZ250-sold :,(
1998 YZ250
2005 KX250F

80% of the time it works every time
IG @hammerfamily_4 & @2HRacing
Thanks to : Factory Effex, N2Dirt, Acerbis, DT1, Fasthouse, Matix, FMF, ASV, 100% & Mika Metals

1/21/2019 6:12 PM

Your pilot jet may also be clogged. These bikes were jetted very lean right out of the box and they also had a very restricted air flow.

Paw Paw


1/21/2019 7:58 PM
Edited Date/Time: 1/21/2019 7:58 PM

These carburetors are notorious for problems. Look up KX65 carb swap. I have done the carb swap and airbox mods and it really wakes the bike up and it runs much better. I had troubles with my stock carb as well. If your on a budget though try adjusting the float height. The little passageway In the bowl of the carb gets clogged easily and is hard to clean.