TAYO Zontes ZT125-M 2022, Maintenance Manual

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d. Wipe clean the sensor head or replace with a new three-
in-one sensor, align the three-in-one sensor with the shaft ⑤
and install it back on the valve body. Reinstall the stepper
motor.
5. Throttle valve body troubleshooting process
Throttle valve body
troubleshooting process
Idle adjustment bolt
looseness,poition
spring stagnation and
other problems
According to idle
speed,determine idle speed
adjustment bolt position and
fix; replace recoil spring or
cleaning throttle valve body
disc
Throttle body sensor
performance check
Fault lights are always
on druing riding
Check the corresponding sensor
according to the fault code,if the
circit is normal,the sensor can be
judged to be faulty and need to be
replaced.
The diagnostic
instrument eads the data
stream and requires the
engineer to judge
whether the sensor is
working properly
●The vehicle must be parked on a flat and stable ground or a
lifting platform.
●Once the engine and muffler have cooled down, the
operation can be performed.
●When removing the high -pressure fuel pipe, prevent the
fuel from dripping onto the surface of the part.
●Smoking, making calls, etc. are prohibited in the workplace.
●Remove the throttle valve body to clean the carbon
deposits and operate in a dust-free and dust-free
environment to prevent dust from entering the inside of the
engine.
●Prevent foreign matter from falling into the engine o r air
filter.
●If the stepper motor, three -in-one sensor and heat
insulation pad are disassembled, do not miss the sealing ring
and make sure that the sealing ring is assembled in place
without cutting edges.
●Do not use carburetor cleaner or compressed ai r to clean
the throttle valve body.
●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 .