Our little Tao Tao DB 110 dirt bike would not start. It just made a click when you would press the start button. Charged the battery and that did not solve the problem. Replaced the battery also which was a waste. Jumped the solenoid and that did not solve the problem. Tested the starter and it clicked as well. Removed the crank case and found a pebble lodged in the chain. Removed the pebble and replaced the case and she fired right up.