Operation Manual
﹙Checking front brake lining﹚   ﹙Checking oil quantity in brake oil reservoir﹚ 
•  Check the brake from behind the brake 
caliper.   The brake pad must be replaced with 
new lining when the brake pad wear limit 
reaches the brake disk. 
•  Park the scooter on a level ground, and check 
if fluid level is under the “LOWER” mark.   
Recommended Brake Fluid: WELL RUN 
BRAKE OIL (DOT 3). 
Brake cali
p
e
r
Brake pad wear 
limit grooves
Brake disk
﹙Replenishment of front wheel brake fluid﹚ 
1. Loosen the screws and remove the master 
cylinder cover. 
20 
10. Inspection and maintenance before riding 
2. Wipe clean foreign materials , dirt around the 
reservoir, being careful not to let foreign materials 
fall into the reservoir. 
3. Remove the diaphragm plate and the diaphragm. 
4. Add brake fluid to upper level. 
5. Install the diaphragm plate and the diaphragm, 
and install the master cylinder cover.   
6. Please note the diaphragm direction, and do not 
let foreign materials fall into the reservoir. And 
tighten the master cylinder cover securely. 
Screw
 CAUTION: 
• To prevent chemical reaction, please do not use brake fluids other than those recommended. 
• Do not fill above the upper limit when adding brake fluid and avoid dropping on painting or plastic 
components to prevent damage. 
  THROTTLE VALVE HANDLE CLEARANCE ADJUSTMENT   
• Correct clearance allows throttle vale handle to rotate 2~6mm. 
• Loosen the lock nut first, then turn the adjust nut to adjust.   
Tighten the lock nut securely when finished. 
 Check Items: 
1. Check throttle valve cable to see if it can be moved smoothly 
from a closed position to a wide open position. 
2. Rotate steering handle from side to side to check if the throttle 
valve cable is interfered.   
3. Check to see if the throttle valve cable is obstructed by other 
cables preventing it from being operated smoothly. 
Upper
Brake fluid 
Diaphragm
Master 
cylinder cover
2~6mm 
Lock nut 
Adjust nut 










