04 kx250f stalling out

Hey TT

I got some work down to my valves and seats done to the bike

and i decided to go for a little ride and see how it was running

it ran amazing and than all of a sudden it was harder to kick over and it started making a weird noise almost by the rads????

So i thought maybe it was just hot or something and i was going down the road in about 4th gear and all of a sudden it just completely shuts off.

It just keeps shutting off after its running but when it is running it runs 100%



I would say timming. but if it's 100% when running check your fuel tank breather tube. might have vapor lock.

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