Zontes ZT125-M 2022, Maintenance Manual

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61 / 218
d. Replace the new fine filter (oil filter element) and
gasket. The fine filter assembly already contains O ring (3a),
fine filter (oil filter element) (3b) and gasket (3c). Replace in
order.
e. Remove the O ring on the fine filter cover and replace it
with a new O ring. First put the O ring (3a) into the groove of
the fine filter cover ⑵ , and then install it back to the engine
box.
f. Screw back the 3 nuts (1), Torque: 12 N.m (1.2 kgf.m, 9
lbf.ft).
3. Add oil
a. Replace the filter element with a measuring cup with a
viscosity of SAE5W-40/10W-40/10W-50. The new API SN
grade or higher motorcycle special machine 0.95L (1 US qt,
0.84 lmp qt, 0.25 US gal, 0.21 lmp gal). If the filter element is
not replaced, the measuring cup is filled with 0.9L (0.95 US
qt, 0.79 lmp qt, 0.24 US gal, 0.2 lmp gal).
b. Use a measuring cup to add engine oil to the
fuel filler opening on the right crankcase cover of the engine.
c. Wipe clean the fuel filler opening with a non-woven
cloth.
d.inspection O ring
⑵
Whether there is damage or aging, if
not, wipe it clean, if any, replace it.
e. Wipe clean the oil dipstick, and turn the oil dipstick ⑴
and O-ring ⑵ clockwise by hand to replace the right
crankcase cover of the engine.
4. Change gear box oil
a. Remove the left engine cover by referring to the steps
for replacing the air inlet filter element.
b. Place an oil pan under the rear of the left engine. Rotate
the fuel filler nut ⑴ counterclockwise, and remove the nut ⑴
and O ring ⑵ .
c. Use a 14# sleeve to loosen the oil drain bolt
⑶
counterclockwise, and remove the bolt ⑶ and copper pad ⑷ .
d. Remove the oil drain bolt ⑶ and the copper pad ⑷ .
e. After the gear box oil is completely drained, wipe the
surface of the drain port with a non-woven cloth.
f. Replace with a new copper pad
⑷
, check whether the
joint surface of the oil drain bolt ⑶ is scratched, if not, wipe
it clean and install it in order. Torque: 20 N.m (2 kgf.m, 15
lbf.ft).
g. Fill the measuring cup with 0.16L of oil or gearbox
special oil (0.17US qt, 0.14 lmp qt, 0.04 US gal, 0.04 lmp gal).
h. Check whether the O ring ⑵ is damaged or aging, wipe
it clean if not, and replace it if there is any.
i. Wipe clean the nut
⑴
and the fuel filler port with a non-
woven cloth, first put the O ring ⑵ into the nut ⑴ , and then
turn it clockwise by hand and install it back to the fuel filler
port of the gear box.
5. Confirm the oil level
a. After starting the vehicle and running at idle speed for
several minutes, check whether all the disassembled