Originally Posted by Abysalone
Sweet. Ill probably bring it by then, since I cant seem to figure it out. Its a 97 Kx 125 that was supposedly rebuilt. While riding after a few minutes it just cuts off. Runs very strong until then. No sputtering, not sluggish, etc. Just flat out dies and wont start for a good few minutes. After a couple times and nothing I tried helped. i gave up for now, it wont even fire up. The only thing I can think is the powervalve thing.
make sure the gas tank vent isn't clogged. should be in the gas cap i believe. sounds like it may be blocked, and after a few minutes, it builds a vacuum in the tank, which cuts the fuel flow. after letting it sit for a few, the vacum disipates, and the fuel will flow again.
just something to check before you go having the carb cracked open. i see it happen alot. put a fresh plug in it too.