Zontes ZT125-M 2022, Руководство по обслуживанию

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No. 1 5 6 7 14 16
Color Blue/y
ellow green
yellow/
white
brown/
white
green/
black
Red
3. Fuel pump
Caution:
●The fuel pump is a precision component that needs to be
assembled in a dust-free workshop and requires rigorous
testing, so it is forbidden to disassemble it by yourself.
●The engine of this vehicle is designed with a high
compression ratio. It is recommended to add 95# and
above unleaded gasoline for a long time. In order to extend
the service life of the vehicle, please be sure to go to a
regular gas station to refuel.
●It is forbidden to run the fuel pump in dry state or in
water, otherwise its service life will be shortened, and it will
be directly damaged in severe cases. The positive and
negative wires of the fuel pump cannot be connected in
reverse. It is forbidden to disassemble the fuel inlet filter,
which may cause foreign matter to enter the fuel pump or
block the fuel injector.
●The disassembly of the fuel pump or high -pressure fuel
pipe should be carried out in a well-ventilated, dust-free or
dust-less environment; dangerous operations such as
fireworks or mobile phones should be strictly prohibited in
the disassembly site.
When it is difficult to start the engine or start without
dust; the engine is not working well, the operation is
unstable, etc.; the fuel injector does not inject fuel; the
engine is running weak and the acceleration performance is
deteriorated. It is necessary to check whether the fuel
pump is abnormal.
Refer to the steps of "Maintenance-Fuel Pipe-
Replacement of High-pressure Fuel Pipe" in this manual to
remove the surrounding bottom plate and high-pressure
fuel pipe. Refer to the section "Maintenance-Fuel Pipe-Fuel
Pump" to measure fuel pressure with a fuel pressure gauge,
or use a simple test method to test whether the fuel pump
is normal.
If the fuel pump needs to be removed from the vehicle,
the fuel pump can be used to drain the fuel in the fuel tank.
After lifting the vehicle, press the plug buckle as shown in
the figure to pull out the cable. Remove 5 bolts from the
bottom with a 10# sleeve, and then remove the fuel pump
after removing the high-pressure fuel pipe bracket. Be
careful not to press the fuel outlet pipe shown in the red
circle. Once damaged, you can only replace the entire fuel
pump assembly.
When reassembling, you need to pre-tighten diagonally
and then tighten the 5 bolts. Otherwise, the uneven
compression of the seal rubber ring of the fuel pump may
cause leakage and cause safety hazards.
4. Carbon canister solenoid valve
When the engine performance is poor; the idle speed is
poor; the air-fuel ratio is incorrect, the carbon canister
solenoid valve should be checked.
Use a multimeter to measure the resistance between the
two inserts of the canister solenoid valve plug should be
35±2Ω, otherwise it can be judged that the solenoid valve is
faulty.
5. EFI relay
M310 folding rear storage box: there are two PVC
sheaths at the battery, each sheathing encloses four relays,
a total of eight relays (starting auxiliary, light, oil pump,
main relay, front motor, rear motor, cooling fan, rear box
starting). M310 integrated rear compartment: there are 4
relays (starting auxiliary, light, oil pump, main relay) near
the ECU on the right side of the vehicle, and 2 relays (front
motor, cooling fan) on the left rear side.M350 has 5 relays
(starting auxiliary, lighting, oil pump, main relay and cooling
fan) at the relay bracket on the left side of the front riser of
the head.