How do you tighten drive chain on tao tao 110cc ATV?

To tighten the drive chain on a Tao Tao 110cc ATV, first, locate the adjustment bolts on the rear axle. Loosen the axle nuts slightly, then turn the adjustment bolts evenly on both sides to increase chain tension. After achieving the desired tension, re-tighten the axle nuts securely. Finally, check the chain's slack to ensure it's within the recommended range before testing the ATV.