Zontes ZT125-M 2022, Maintenance Manual

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e. Wipe clean the joint surface with a non-woven fabric.
Inspect the oil drain bolt ⑶ whether the joint surface is
scratched; if there is any, replace it with a new one, if not,
wipe it clean.
f. Replace the new combination gasket ⑷ , and use a 14#
sleeve to install the oil drain bolt ⑶ and combination gasket
⑷ back to the engine box. Torque: 25N.m (2.6 kgf.m, 18
lbf.ft).
2. Replace fine filter
a. Place an oil pan under the fine filter cover.
b. Use a 10# sleeve to loosen the 2 nuts (1b) at the bottom
of the fine filter cover; use a 10# torx wrench to remove the
upper nut (1c). Then remove the nut (1b) at the bottom.
c. Remove the fine filter cover ⑵ and O ring (3a). Remove
the spring ⑷ , the fine filter (oil filter element) (3b) and the
gasket (3c) in sequence.
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), first pre-tighten the bottom 2
with a 10# sleeve, and tighten the upper nut (1a) with a 10#
torx wrench; then tighten the bottom 2 screws. 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 1.75L (1.85US qt,
1.54 lmp qt, 0.46 US gal, 0.39 lmp gal). If the filter element is
not replaced, the measuring cup is filled with 1.7L (1.8US qt,
1.49 lmp qt, 0.45 US gal, 0.37 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. 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 .
b. Use a 14# sleeve to loosen the oil drain bolt ⑶
counterclockwise, and remove the bolt ⑶ and copper pad ⑷ .