I just bought a new 2004 Hero Majestic Pacer. I put it all together and started it up. It ran for a few short trips up and down my road, and then died. It turns over when I pedal, but as soon as I release the clutch and choke, it dies. I've tried a few adjustments and only once have gotten it to actually start up again, only to die at the end of the driveway. Yes, I've pre-mixed the gas and oil, in a 3% mix for the break-in period, which is 1000km (right?). Seems like the throttle isn't adjusted properly, or perhaps the carb? I'm just learning, so I don't want to make any major adjustments, otherwise I may make the problem worse. Since it's a new bike, I feel like it's got to be a simple problem that someone who knows anything about moped engines could fix. But who knows. I'm open to suggestions. Thanks for your input!