YG125-30A Maintenance Manual
Frame and exhaust system
107
Frame and exhaust system
Maintenance notice
Removal and installation of rear mudguard
Troubleshooting
Removal / installation of exhaust muffler
Coverings, headlamp and meter
Rear position lamp assembly
Maintenance notice
To carry out the maintenance stated herein, take special care of the scratches and damages to the coverings, meter and
light fittings.
Removing or repairing the parts and components before the exhaust system is cooled down may cause serious burn
injury.
This section mainly includes the removal and installation of the complete vehicle’s
coverings, rear mudguard, exhaust
muffler, radiator and lamps.
Troubleshooting
Excessive exhaust noise
The exhaust system is damaged;
Air leakage;
Abnormal operation
Exhaust system deformed;
Air leakage;
Muffler clogged.
Maintenance of Frame
Component
description
Damage form
Trouble symptom of
component
Trouble symptom of
motorcycle
Repair method
Frame
The frame is
deformed or broken.
The frame is deformed
or broken.
Running off-tracking
Calibrate or replace
frame
Main stand
Deformation or
fractured
Deformation or fractured Effect of parking
Replace the main
stand
Return spring is
fractured
Main stand impossible
to return
Effect of parking
Replace the return
spring
Covering parts Broken
Broken
Effect the appearance
Replace or repair
Covering parts
Fender
Damaged
Broken
Effects of fender effect
Replace the fender
Seat
Broken
Broken
Decrease of the
comfortable
Replace the seat
Footrest
Broken and
deformation
Broken and deformation
Replace the footrest
Maintenance of Exhaust Muffler
Component
description
Damage form
Trouble symptom of
component
Trouble symptom of
motorcycle
Repair method
Exhaust pipe
gasket
The gasket is broken
．
Exhaust pipe leakage
．
Engine exhaust noise is
too loud
．
Replace the exhaust
pipe gasket
．
Exhaust
muffler
The muffler case is
broken
．
The muffler case is
broken
．
Engine suction noise is too
loud
．
Replace the exhaust
muffler
．
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