Zontes ZT125-M 2022, Maintenance Manual

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6. Fuel supply system
Know Before Service
1. Bending or twisting the control cable will affect the smooth operation, and may cause a short circuit or open circuit, causing
the vehicle to lose control.
2. The operation should be carried out in an open and ventilated place. All activities that may cause sparks, such as smoking,
calling on mobile phones, etc., are prohibited on the job site.
3. Before operation, release the pressure of the high-pressure fuel pipe. The method is as follows: unplug the fuel pump, start
the engine and run at idling speed until the engine stops. Turn off the engine
，
Turn off to " ", turn off the power and lock the
bike.
4. Do not fully open the throttle valve body manually after removing the throttle cable, which may cause abnormal idling.
5. After removing the throttle valve body, apply masking paper or a clean non-woven fabric to block the air inlet to prevent
foreign matter from falling into the engine.
6. Do not damage or operate the throttle valve body, which may cause abnormal throttle operation.
7. After removing the throttle valve body, prevent dust or foreign matter from entering the throttle hole or air passage. If
necessary, it can be cleaned with dry compressed air.
8. It is forbidden to loosen or tighten the bolts or nuts that have been marked with a marker on the throttle, which may cause
abnormal throttle opening and closing and idle speed control.
9. Cannot use carburetor cleaning agent.
10. Throttle valve body parts not specified in this manual shall not be disassembled.
●After reinstalling the battery or EFI components, reset the EFI system. For specific operations, please refer to the precautions in
the driver's manual or the throttle valve body chapter of this manual.
Fuel tank removal
Caution:
●The demolition site must be ventilated and pay attention to
fire prevention. See the previous chapters for specific
matters, so I won’t repeat them here.
●First use the oil well pump or wait until the fuel in the fuel
tank is almost exhausted before disassembling.
●Be careful not to pull the nylon rope shown in the figure,
forcibly pulling it may break. And our company does not sell
this nylon rope separately.
●Pay attention to protect the oil outlet of the oil pump, and
only pull out the high-pressure oil pipe axially. Be careful not
to pull or press the oil port radially.
●The M125 /350 steps are similar to the M310, taking the
M310 as an example.
1. Disassemble the fuel tank assembly
a. Follow the steps in the pre-service instructions to first
consume the fuel in the high-pressure fuel pipe.
b. Refer to the steps for removing the cover first to
remove the outer cover of the fuel tank, the side cover, the
pedal and other plastic appearance parts. Remove the Anti-
Vibration plate. Use a 10# sleeve to remove the 4 M6×12
bolts on the right side.
c. Press the anti-trip buckle of the plug of the oil level
sensor and pull out the plug.