If the drive chain is badly worn or incorrectly adjusted (either too loose or too tight) the drive chain could jump off the sprockets or break.
Warning! A drive chain that breaks or jumps off the sprockets could snag on the engine sprocket or lock the rear wheel, severely damaging the motorcycle and causing an accident. Never neglect chain maintenance.
Note:
- Lubrication of the drive chain should ideally be carried out with the motorcycle set up so that the rear wheel is free to rotate.
- The drive chain must be adjusted with the motorcycle in an upright position, resting on its wheels, and with no additional weight on it.