Zontes ZT125-M 2022, Руководство по обслуживанию

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d. Use a short Phillips screwdriver to remove the two
GB9074.4 M4x12 bolts (3) and the stripper card (4) from the
throttle body assembly, and then remove the stepper motor.
Simple test method: After power off, take out the stepper
motor, do not loosen the cable plug, press the flameout
switch at the start of the machine, no lighting, check whether
the motor plug can shrink back and forth, finally turn off the
flameout switch, check whether the plug is back to the
original position.
To check whether the stepper motor is abnormal, you can
measure whether the resistance at both ends of A and B is
53±5.3Ω.
e. Use a short Phillips screwdriver to remove the GB9074.4
M4x16 bolt ⑤ from the throttle valve assembly and remove
the position sens or. Please align the rotation axis ⑥ when
installing it back.
Simple test method: The vehicle is connected with the
diagnostic instrument, press the flameout switch (no need to
fire), turn the throttle handle from the initial position to the
full open, this process to check whether the throttle position
signal changes from 0 to 100.
Position Sensor output voltage idle position: 0.7±0.1V; Full
open position: 3.6-3.9V, input voltage DC5V±0.1V.
f. Check the external intake pressure sensor:
Loosen the connector and check whether the pin is skewed
or broken.
The vehicle is connected to a diagnostic instrument,
without ignition, to detect engine parameters and check
whether the pressure parameters are consistent with the
local atmospheric pressure.
If it is necessary to remove the intake pressure sensor,
hold the bushing and use the 8# short sleeve to remove the
bolt
⑶ .If it is inconvenient to operate, remove the battery
and electrical parts box before proceeding.Clamp the bottom
clamp with the pliers, move up to the top, remove the intake
pressure sensor connection hose
⑸ and sensor. Then
remove the hose from the sensor.
6. 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 workpl ace.
●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 or air
filter.
●If the ste pper 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 air to clean
the throttle valve body.