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ENGLISH
[9] Check if the fuel pump motor rotates and clean
or replace the fuel filter screen.
For a motorcycle that has driven for 8000 ~
10000 Km, a new fuel filter should be installed.
Suggestion
Check fuel pump
3. Refer to Table 4-1 in respect of damage forms, fault phenomena and common
maintenance methods of the fuel system:
Table 4-1: Maintenance of Fuel Supply System
Component Name
Damage Form
Component Fault
Phenomenon
Motorcycle Fault
Phenomenon
Maintenance
Method
Fuel tank
The tank is rusted
with broken holes.
The fuel tank leaks.
--------------
Repair or place the
tank.
The vent hole is
blocked.
Fu e l i s s u p p l i e d
improperly.
The motorcycle fails
to start.
U n c l o g t h e v e n t
hole.
T h e f u e l t a n k i s
deformed.
T h e f u e l t a n k
becomes uneven.
T h e m o t o r c y c l e
looks not good.
Repair or place the
tank.
Fuel pump
The oil-filter screen
i s t o o d i r t y o r
clogged.
Fu e l i s s u p p l i e d
improperly.
T h e m o t o r c y c l e
h a s d i f f i c u l t i n
starting or fails to
start, the engine is
under powered, the
engine idling is of
instability
Clean the fuel filter
screen
The chamber of fuel
pump is clogged.
Fu e l i s s u p p l i e d
improperly.
The motorcycle fails
to start.
Clean or replace the
fuel pump.
T h e f u e l p u m p
m o t o r d o e s n o t
rotate.
Oil supply fails.
The motorcycle fails
to start.
Replace the fuel
pump motor.
The oil pressure
regulator is clogged.
T h e f u e l f a i l s t o
retreat.
T h e o i l c o n d u i t
blows out.
Clean or replace the
fuel pump.
The oil pressure
regulator is always
open.
The fuel is supplied
at low pressure.
T h e m o t o r c y c l e
h a s d i f f i c u l t i n
starting or fails to
start, the engine is
under powered, the
engine idling is of
instability.