Zontes ZT125-M 2022, Maintenance Manual

Page: 69 / 218

69 / 218
●The EFI system needs to be reset after reinstalling the
battery. The specific method is as follows:
a. Unlock the vehicle and support the main bracket;
b. Pinch the brake and start the vehicle;
c. Pull the engine speed above 3000 rpm;
d. After releasing the throttle, turn off the flameout switch
and lock the car;
e. After waiting for 5 seconds, unlock the vehicle again to
complete the reset of the EFI system.
M125 Throttle valve body
Caution:
●The position sensor and stepper motor cannot be immersed
in any liquid.
●It is forbidden to adjust the idle speed adjustment screw on
the valve body.
1. Do not dismantle the throttle body to clean up
carbon deposits
a. In the process of riding, without affecting safety and
complying with traffic laws, appropriately increase the
throttle to increase the speed to more than 7000 and
continue riding for no less than 2 minutes. High-speed
scavenging can effectively remove carbon deposits.
b. Use a regular and qualified fuel cleaner to add in the
amount indicated. Frequent use may cause damage to the oil
supply line.
2. Remove the stepper motor and clean up carbon
deposits
a. After opening the seat cushion, use 10# ratchet
wrench to remove 3 nuts ⑴ . Remove the seat cushion and
put it away. Be careful not to put it directly on the ground
and avoid scratching the cushion skin.
b. Use 4# inner hexagon to press down 2 swell nails ⑵
center cylindrical pins, and then remove it.
Use 4# inner hexagon to removed 2 pcs M6×16 bolts ⑶ .
c. Remove the decorative buckle ⑻ of the M6 hexagon
socket bolt; remove the M6×16 bolts ⑶ on both sides with
4# hex socket.
d. Grasp the tail skirt of the storage box and pull it upward
obliquely, paying attention to the cables iny the battery
compartment. Pull up to see the left side of the glove box
atmosphere lamp thread, unplug the thread and remove the
glove box assembly.
e. Use 4# inner hexagon to loosen 2 pcs bolts come with
the pipe clamp.
Rotate the throttle body so the stepper motor plug is
facing up.Unplug the plug of the stepping motor①.