Zontes ZT350T-D, Руководство по обслуживанию

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7. Ignition coils
There is no high-voltage spark; the high-voltage spark is
weak; when the engine is started without dust, check
whether the ignition coil is normal. Common faults of
general ignition coils such as short circuit, open circuit or
grounding of the coil will cause no high voltage. In addition,
the material of the ignition coil insulation layer is aging, the
insulation performance is deteriorated, and the leakage of
the ignition coil makes the electric spark weak and the
ignition energy is insufficient. As a result, it causes unstable
idling, intermittent flameout and inability to catch fire.
When encountering this kind of failure, it is necessary to
check whether the resistance and insulation performance
of the ignition coil meet the requirements, if not, replace it.
Remove the spark plug from the engine and install it on
the high-pressure cap according to the steps in the section
"Maintenance-Spark plug-Removing the spark plug". Put
away the side brackets, use the main bracket to park the
vehicle firmly and unlock the vehicle, turn the flameout
switch to "", hold the brake handle, and place the spark
plug close to the engine cylinder head cover or box (should
be far away from the spark plug mounting screw hole)
about 6mm (0.24 in), press the start button. If a blue spark
is found on the spark plug electrode, the ignition system is
normal, otherwise it should be inspected by a qualified
maintenance unit.
If you replace the ignition coil, follow the steps below:
a. Remove the storage box according to the steps in
"Maintenance - Spark Plug - Remove Spark Plug". Remove
the bolt (1) on the electrical part box with the 5 #
hexagonal socket, remove the bushing (2) and buffer
rubber (3), and remove the electrical part box.
b. Remove the left cover according to the section
"Maintenance - Remove Spark Plug". Unplug the high-
voltage wire in the figure from the ignition coil.
c. Press the arrow and pull out. Unplug the connector of
ignition coil (5). Then use 8 # open-end wrench or ratchet
wrench to remove the two bolts (4). Replace ignition coil.