Zontes ZT125-M 2022, Maintenance Manual

Page: 132 / 218

132
/
218
M350
a. Remove the M310 ignition coil as shown in the following figure. Remove the cable tie on the left side.
b. Remove the cable tie at the bottom.
c. Find the plug shown in the figure on the left side of the intake manifold, press the anti slip snap indicated by the arrow and
pull out the plug. Use a 22 # open-end wrench to remove the oxygen sensor from the muffler anticlockwise.
11. ECU
M310/350
When the engine cannot be started and the performance is poor, check whether the ECU is normal. Because the ECU is more
complicated and difficult to judge, the elimination method can generally be used to remove the ECU from a normal vehicle of
the same model and replace it with a faulty vehicle.
Refer to the steps of "Maintenance-Rear Shock Absorption-Replacement Rear Shock Absorber" and remove the right tail skirt
to expose the ECU.
The index finger and middle finger are respectively located under the lever. While pressing the buckle with the thumb, turn
the index finger and middle finger to the thumb direction to pull out the ECU plug. Use 5# inner hexagon to remove the bolt ⑴
to take off the ECU ⑵ .