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05 ttr 125 jetting

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I made some mods to my 12 yr old son's ttr 125le that I learned about here on TT. I cut the airbox top, removed the spark arrestor, made a 1'' opening silencer cap, installed a UNI filter, put in a 115 main jet, left the pilot jet stock,and put the pilot air screw out 3.5 turns ( stock was 2.5 out). The results were amazing! More throttle response, quicker warm up time, and lots more power. Cost me less than 20 bucks! My son couldn't stop smiling!

Only problem is the bike pisses gas out the carb vent tube, Especially after the bike is shut down hot. I also can smell a slight gas odor when its running, but no drips. It never did this before the mods.

Any Ideas??? Thanks.

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