To start, I’m Jadyn. I have a 1987 polaris trail boss 250. This wheeler I had 8 years ago and it was running then it came with a no start problem. Couldn’t figure it out. I just recently had tried working on them. Changed everything in order for it to have spark, coil, cdi box, spark plug, etc. Still wouldn’t start. I then realized that the coil needed to be grounded and after I did that, I got spark again. Now, I had tore down the carb three different times and cleaned it, jets and all. Still would not start. So I put some petrol directly into the combustion chamber and boom, it starts. I had it running for a few minutes then I let it die out so I could put it together and take it for a ride; now, here’s where the title comes in…. it does not start. How in the hell can it go from running to not running in 5 minutes???? I am stumped guys. Please help me out. I have another wheeler but the cops are after me because it is not road legal at all…. Thanks you guys for reading!!!!