Zontes ZT350-EURO V 2022, Руководство по обслуживанию

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16-MUFFLER COMPONENT
117
CHK
ADJ
NO. PART NO. PART NAME QTY CAUTION
1 1251300-058093 Inner hexagonal nut M8 (color zinc) 2
2 1070100-499000 ZT350-GK engine exhaust outlet seal 1
4 1050970-011000
LSF oxygen sensor(L=635mm
）
1
5 1020243-097000 ZT350 muffer flanging bushing
（
φ8.3×φ11.5×20.5×φ
8.4×φ33×1.5
）
1
3 4084300-012000 ZT350-GK-H2 front muffler (self-made/Europe
Ⅴ
/Bosch EFI version)
1
Fig.3 MUFFLER
COMPONENT
Muffler component 3
PROCEDURE:
●
Muffer front assembly
Pull the radiator assembly open to facilitate subsequent removal of muffler nuts,hold the buffer component then
use 6# inner hexagon socket or 12# sleeve remover the nut
⑴
.
Hold the bottom of the fender return pressure package with one hand, and grab the flange at the exhauster to
remove it. Wrap the flange with a rubber band or rope to prevent the flange from moving back and forth on the
front elbow and causing scratches.
Take off the exhaust seal pad
⑵
from the exhaust.
Take off the bushing
⑸
and the cushioning rubber
⑹
.While reassembly pay attention to the cushioning
⑹
,the
side of hollow towards the inside.
●
Oxygen sensor
Remove the oxygen sensor with an 22# open wrench.
Test method:
In case of poor engine performance, unstable idle speed, high fuel consumption and incorrect air-fuel ratio,
check the oxygen sensor. The fault code can be read through the diagnostic instrument to confirm whether the
oxygen sensor is faulty.
Locate the plug of the oxygen sensor near the top of the right body guard bar and pull it off. Use a multimeter to
measure the resistance of the heating element of two white wires to 9 ± 2k Ω;or the measured current shall be
≤
2.1A. Otherwise, it can be judged as oxygen sensor fault. The ceramics inside the oxygen sensor are hard and
brittle. It is forbidden to knock with hard objects or blow with strong gas, otherwise it will be easy to cause
damage.
Or remove the oxygen sensor and observe the color of the top part of the head, which is normally light gray. If it
is white, it indicates that silicon poisoning has been damaged and needs to be replaced. If it is black, it indicates
that there is carbon deposit, which can be cleaned and used again; If it is brown yellow, it is lead poisoning and
needs to be replaced.
Assembly precautions:
The thread of the new sensor is coated with special paste thread anti sintering agent to prevent air leakage and
facilitate subsequent disassembly. If there is no problem after removing the old one for inspection, an
appropriate amount of anti sintering agent shall also be applied to the thread before installation.
Torque standard
：
44N.m.
CAUTION:
●
The muffler should be completely cooled before it is disassembled.
●
Prevent foreign matter from entering the interior of the muffler.
●
The muffler nozzle needs to be protected. If there is any deformation, it may cause air leakage.
●
It is recommended that new seals be replaced each time the muffler front assembly is removed to
prevent airleakage.
6 1244300-022000 ZT350-GK-H1 muffler suspension hollow cushioning
rubber
1