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1.5 Fault diagnostic procedure for excessive fuel consumption
I t e m 1 . 1
applies
①
Check if the air cleaner is clogged.
②
Check if the oxygen sensor is
working well
③
Check if the fuel nozzle is working
correctly
Check if ignition timing
is proper or not
The combustible
mixture is too dense
T h e c o m b u s t i b l e
mixture ratio is proper
①
C h e c k i f t h e f u e l
filter
is clogged.
②
Check if the fuel
nozzle is blocked
③
Check if the oxygen
sensor is working well
Exclude as the case may be
Check if the fuel tank, fuel pipe
and so on for any leakage and if
the tube hoop is locked
Inflate sufficient gas
as required
Normal pressure
Too low pressure
Check the tire pressure
①
Check the brake for any drag
②
Check the wheel bearing for any
wear
③
Check if the hub spacer bush is
absent or too short
Flexible rotation
①
Check if the motorcycle is overloaded or
does not run at economic speed or runs at
low speed
②
Check if the used gasoline is correct
Inflexible rotation
Support the main frame
and rotate wheels
Check if the operation
method is proper
Excessive fuel consumption
Check the combustible mixture ratio
T h e c o m b u s t i b l e
mixture is too diluted
Check if the engine
speed is too high
yes
yes
No
No
yes
No
Check the
ignition system
