I'm very new to dirtbikes/pitbikes this is my first bike. I should of just saved up for a Kawasaki Kx 125, anyways so I bought this Orion 125cc pit bike and had some friends who know a little here and there about bikes and they took a look and couldnt figure it out.. Well it starts..sometimes. It has a new spark plug and new gas and oil.Well what it does it doesnt stay idling and you cant get it to actually ride because once you shift into first it sputters and starts to kill, but it will go about 5-10 feet before dying off completely. The engine also makes popping noises. Sounds almost like its backfiring after every single rev. I was thinking it could be the carbuerator, we blew air through the jets to make sure nothing was clogged but we didnt actually clean out the entire carb. The floats,pistons, and CDI are fine. I'm actually surprised this off brand actually has a mikuni carb in it. anyways please help me out and give me some suggestions. should I soak it in carb cleaner?