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Diagnosis on excessive fuel consumption of engine
Excessive fuel
consumption of engine
Check whether operation is correct
Raise the main kickstand and
rotate wheels with hands
1.
Check whether the motorcycle
runs with overload or not at
economical speed or at low
gear.
2.
Check whether petrol grade is
proper.
Inflexible rotating
of wheels
Flexible rotating of
wheels
1.
Check whether
there is braking
drag.
2.
Check whether
wheel bearing is
seriously abraded
or damaged.
3.
Check whether
the middle sleeve
of hub is missed
or too short.
Check
tyre
pressure
Low pressure
Normal
pressure
Inflate as required
Check whether oil leakage
occurs in fuel tank, fuel
switch, fuel pipe or carburetor.
Solve problems based on
actual situation
Check the proportion of
mixed combustible gas.
Normal combustible gas mixture
Mixed combustible
gas is too dense.
Mixed combustible
gas is diluted.
Check whether the idle
speed of engine is too high.
1.
Check whether the air
filter is blocked.
2.
Check
whether
the
carburetor float is too
low.
3.
Check whether the main
measuring
jet
of
carburetor is too big.
1.
Check whether the
carburetor
is
blocked inside.
2.
Check whether the
carburetor float is
too high.
Check and adjust the
carburetor.
Check whether ignition is
timely conducted with an
ignition timing lamp
Check whether the
driving belt of
clutch is slipping.
Check the ignition
system.
