I bought this bike last year for dirt cheap with what wound up being bad main bearings. I put new bearings/seals/top end in over the winter. Fired it up and realized it was not getting into the powerband. Looked at the RC valve and realized that the cables were in pretty bad shape. I had ordered the new cables, but kept playing with the adjustments to see if it would run any better. I ran it up and down the street a few times and it was still not getting on the pipe (bottom end nice and snappy). While coming down the road it just quit on me abruptly. Kicked it over a few times and the motor turned without issue. I kinda figured that I fouled a plug since the ex valve was not opening and the plug was probably getting loaded up. Since I did not have a spare plug, I put it up and figured I would mess with it after I picked up some new plugs and got the new RC valve cables. So the cables came the other day and I put them on. I noticed that the old return cable was really frayed and difficult to get it to move through the cable cover by hand (which I think was the issue). So I adjusted the cables per the Manual, and dropped a new plug in. Kicked it over a few times and she fired up briefly (1-2 seconds), but then it shut off. It did this a few more times, almost seemed to be starving for fuel. When it would fire, if I gave it some throttle, it seemed to keep it running for maybe a split second longer. I checked and there is plenty of fuel in the tank. Any ideas? The abrupt shut down when riding makes me think that something went awry all of a sudden. I am not really good at diagnosing 2 strokes, so I am kinda confused about this one. 2002 CR 2502, new top end, stock TMX carb with a 400 main, 32.5 pilot (as I remember), stock needle 3rd clip from top, stock pipe and silencer, CF reeds.