The steps to refill brake fluid are as follows:
1.Remove lid screw.
2.Remove the lid
3.Add brake fluid to appropriate position
4.Install back the lid
DOT4 brake fluid is recommended.
Check the rear brake friction plate
Friction plate
Check the thickness of the rear brake caliper brake disc, which
should not be less than 1 mm. If the thickness of the brake disc
is less than the minimum thickness, the whole set of brake discs
should be replaced immediately.
Danger:
If it is found that the brake system is worn too much,
the corresponding parts should be replaced immediately to
avoid safety accidents. The specific replacement should be
carried out after consulting the dealer of KAYO.
Tire inspection and maintenance
Removal and installation of front wheel