Zontes ZT310T-M, Руководство по обслуживанию

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After the
box
starts
green
Light
green
White
Black/
white
6. Fuel injector
When the engine is unstable and weak, and the
power performance is poor, check whether the injector
is normal.
Need to remove the cushion and storage box first.
Can be judged by the following methods
：
a. Park the vehicle firmly, start the engine, and let
the engine run at idle speed. Use the auscultation
needle or stethoscope to listen to the working sound of
the cylinder. You should be able to hear the rhythmic
working sound of the injector. If the sound is clear and
even, it works normally. If the sound is low or cannot
be heard, the injector needs to be removed for
troubleshooting. Or the engine stalls when the injector
plug is unplugged, indicating that the injector is normal.
b. Pull out the plug after pressing the anti-trip lock.
Using a multimeter to measure the static coil
resistance should be 12±0.6Ω, otherwise the injector
must be replaced if it fails.
If you need to replace the fuel injector, wait until the
engine and muffler have cooled down. After placing
the oil container at the bottom, refer to the steps for
removing the high-pressure oil pipe to pull out the
high-pressure oil pipe at the end of the fuel pump to
discharge the remaining fuel. Use a 10# sleeve to
remove the bolt
⑴
, remove the injector holder
⑵
, and
then take off the injector
⑶
.
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. Put down the left rear pedal and use the 4# inner
hexagon to remove the bolts (1) Remove the bushing
(2) and the cushion rubber (3).