13
、
MUFFLER COMPONENT
117
CHK
ADJ
NO.
PART NO.
PART NAME
QTY
CAUTION
1
1070100-499000 ZT350-GK engine exhaust outlet seal
1
2
4084300-013000 ZT350-V1-J2 Muffler (Europe
Ⅴ
/Bosch EFI version)
1
3
1050970-011000 LSF oxygen sensor(L=635mm)
1
5
1251100-102000 Non-standard bolt M6×16 (304 stainless steel)
3
6
1274100-018000 ZT250-S Anti-hot plate sleeve, muffler
3
7
1244100-017000 ZT250-S muffler hot plate rubber buffer
3
8
4044302-039051 ZT350-V1 muffler decorative cover (dark gray matte)
1
9
1270300-201000 Stainless steel asbestos mat 6×20×1.6
3
ZT350-GK-H1 muffler suspension hollow cushioning
rubber
Fig.2MUFFLER
COMPONENT
Muffler component 2
2
PROCEDURE:
●
Muffler assembly
Take off the exhaust seal pad
⑺
from the exhaust.
●
Decorative cover
After holding the decorative cover firmly, use 4# inner hexagon to remove 3 bolts
⑸
, and take off asbestos
pad
⑼
.
Remove the decorative cover assembly.
Remove the bushing
⑹
and the cushion rubber
⑺
from the decorative cover
⑻
.
●
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 ente
ring
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.
4
1244300-022000
Содержание ZT350-V1
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