Zontes ZT125-M 2022, Руководство по обслуживанию

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Connect the diagnostic instrument to the whole vehicle,
press the flameout switch (without ignition), turn the throttle
handle from the initial position to fully open, and check
whether the throttle position signal changes from 0 to 100.
e. Check whether the external intake pressure sensor is
damaged
Loosen the connector⑦ and check whether the pin is
skewed or broken. The vehicle is connected to the diagnostic
instrument without ignition. Check the engine parameters to
see whether the pressure parameters are consistent with the
local atmospheric pressure.
If you need to remove the intake pressure sensor, use an
8# short sleeve to remove the bolt (1). Use pliers to clamp
the clamp at the bottom, move it up to the top, and then
remove the intake pressure sensor connecting hose (2) and
the sensor together. Then remove the hose from the sensor.
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 foreig n matter from falling into the engine or air
filter.
●If the stepper motor, 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 carbureto r cleaner or compressed air 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.
Throttle cable
1. Inspection
a. Check whether the rubber sleeve of the right hand
handle and the throttle cable are damaged.
b. Check whether the rubber sleeve of the right hand
rotates smoothly and whether it can return automatically.
c. Hold the steering wheel with both hands and turn the
right hand to the right while rotating the rubber sleeve of the
right handle. Every time you turn a certain steering angle,
confirm whether the throttle can be reset normally. If you
can’t reset it, you need to lubricate the cable or the inside of
the right handle; or replace it with a new throttle cable or the
rubber sleeve of the right handle.
d. After starting the engine, turn the steering handle left
and right to ensure that the idling speed does not change
during the steering process, and then turn off the engine.
e. Rotate the right hand to check whether the rubber
sleeve inspection cable gap is within 2
～
4mm (0.1
～
0.2 in).
2. Adjust the throttle cable clearance
a. Fix the adjusting screw② with a 8# open -end wrench,
and then use a 10# open-end wrench t o loosen the nut①
counterclockwise. Rotate the adjustment solenoid②
clockwise to reduce the free stroke, counterclockwise to
expand; adjust the gap to the specified value. After adjusting
the gap, tighten the nut①.