Zontes ZT125-M 2022, Руководство по обслуживанию

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n. It is recommended to seal the spark plug installation
hole with masking paper or other soft plastic bags to prevent
foreign matter from entering the engine.
2. Check the spark plug
a. Check whether the insulator is cracked or damaged,
whether the center electrode is abraded, fouled, corroded,
excessively carbonized or discolored (the color of the ceramic
insulator around the middle electrode of the spark plug
should be light brown). If so, replace the spark plug with a
new one.
b. Clean the electrode with a special spark plug cleaner.
Use a hard iron wire or steel needle to remove the attached
carbon deposits.
c. Use a feeler gauge to inspect the gap between the
center electrode and the side electrode.
d. If necessary, the gap can be adjusted by bending the
side electrodes, paying attention to the strength during
adjustment.
e. Clean the surface of the spark plug gasket and the joint
surface, and wipe off the dirt on the thread.
f. First screw it back to the engine by hand, and then use
the tool to turn it clockwise to the standard torque.
Model: NGK LMAR8A-9
Resistance between the terminal screw and the center
electrode: 3
～
7.5kΩ
Clearance: 0.8-0.9mm (0.031-0.035in)
Torque: 14N.m (1.4kgf.m, 10 lbf.ft)
3. Refer to the steps to remove the spark plug to
restore all parts.
●The v ehicle must be parked on a flat and stable ground or a
lifting platform.
●The operation can only be performed after the engine has
cooled down completely.
●Do not pull or knock the center electrode.
●If the replacement of inappropriate heating value or i nferior
spark plugs causes engine damage, it is not within the scope
of the three guarantees.
●When installing the spark plug, the torque should not be
too large, and the thread should be screwed in manually
before tightening. If there is no torque wrench to replace the
spark plug, you can turn it by hand until there is resistance
and then rotate it 1/2 turn. For example, if you use an old
spark plug, you can turn it to the standard torque as soon as
possible.
●Pay attention and order when removing the plas tic buckle
to avoid the buckle from breaking.
M125 Spark plug
Caution:
●Before disassembling, blow off the dust near the spark plug
with a dust blower.
●After removing the spark plug, prevent foreign objects from
falling into the engine.
1. Disassemble the spark plug
a. Put down the right rear pedal and use the 4# inner
hexagon to remove the M6×14 bolt.
b. Pull out in sequence in the direction of the arrow (from
the rear wheel to the front wheel). Note that there are 5
staples at the red circle and a circle of buckles around. It
takes a lot of force to pull out.
c. Use your fingers or a plastic crowbar to insert the arrow
indication point, first pry the arrow indication point open the
gap and then pull up.
d. Respectively use 4# inner hexagon to remove the 2
M6×12 bolts at the front pedal.