Yesterday while doing some practice riding through cones, I stopped to move the cones. I restarted the bike and when I hit the start button I heard a loud pop and could actually feel a slight jerk in the handlebars. I turned the bike off and started it a couple more times. Each time it would make the Pop sound and start just fine. I drove home and restarted a couple more times and it still popped each time. After sitting for a half an hour or so tried a I started it a couple more times and the pop did not happen. What's up?