The steps to tighten the motorcycle disc brake are as follows:
(1) Preparation tools: Prepare a 17mm wrench or socket wrench set.
(2) Find and loosen the adjustment bolt: Find the adjustment bolt on the brake arm of the disc brake, usually a bolt with 1/4-20 thread. This bolt is used to adjust the tightness of the brake pads. Use a wrench or socket wrench to loosen the adjustment bolt, do not completely unscrew it, just loosen it slightly.
(3) Adjust the brake pads and tighten the bolts: Check the gap between the brake pads and the disc. If the gap is too large, it indicates that the brake pads are too loose. You can manually tighten the adjustment bolts until the gap between the brake pads and the disc is appropriate. After adjusting the brake pads, tighten the adjustment bolts again and check the braking effect. After the adjustment is completed, you should be able to hear a "wheezing" sound between the brake pads and the disc when braking, and the braking force should be moderate, which can quickly stop the vehicle without being too soft.
Adjusting the tightness of the brake requires some experience and skills. If unsure how to operate, it is recommended to seek professional help.