Bought my son a 2001 TTR-125L approximately 6 months ago. While we were using it constantly, never a problem starting it. Didn't use it for approximately 3-4 weeks, then wouldn't start. Gas was overflowing out of the drain tube. The local dealer advised that the float was probably stuck and advised that the carb needed to be serviced. Prior to doing that, I rapped it a couple of times with a rubber mallet, and it started!!
Now this problem of not starting is constant, and as of today, we can't start it at all. My son's friend is having the same problem with a TTR-225.
The selling dealer advises that I need to drain the carb when I store it. If I was storing it for a month I could understand, but a week! The bike hasn't got more then 100 miles on it!! I'm taking it in to the dealer today to see if they can fix and give me some better insight.
I bought my XR-250 at the same time, and it has the same number of miles on it. No problem starting it!!
Any idea's, recommendations, etc. would be greatly appreciated.