Yoto Lion Owner's Manual page 12

Step 3: Pass the headlight mounting bolt through a washer, the headlight mount, the fender mounting point, the fork arch mounting point, a second washer,
and thread the locknut onto the bolt end. Use a 5 mm Allen wrench at the bolt head and a 5 mm wrench on the locknut at the bolt end and tighten
partway. Attach the fender mounting arms to the front fork. Ensure the fender is centered and torque all mounting bolts to the recommended torque
value (6 Nm).
Step 4:
Adjust the headlight angle to illuminate the road ahead and not blind oncoming traffic. Use a 5mm Allen wrench and 5 mm wrench to loosen the
headlight angle adjustment bolt, tilt the headlight to the optimal position, and then tighten.
Step 5:
Unscrew the 2 screws and bolts on both sides right below the fork (see image below), and screw the fender mounting arms in.
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