21
Table 4
Complaint
Symptom and possible causes
solution
Octane value of the fuel is too low
Change fuel
Oil path stop up
Clean oil path
Ignition time is too early or too late
Check coil and change CDI
Spark too weak or flameout
Check ignition and clear out
Mixed air too dense or race
Clean& adjust carburetor
Engine leak
Check and clear out
Muffler stop up
Dredge
Belt wear
Replace
The vehicle
is unable to
accelerate
performance
badly
Automatic clutch roller wearing
Replace
Clutch worn
Replace
Starting relay worn
Replace
Electric
start failure
Electric quantity lack
Charge
Turning bearing gap too wide
Adjust
Lack of tire pressure
Pump
Driving
unsteady
Front& rear Axle flexible
Tighten nut
Brake pad fray to limit
Replace
Brake cam fray
Replace
Brake cable damaged
Replace
Brake
Failure
Free path overlong
Adjust
22
Cleaning air filter
（
Fig 20
）
•
Take out rear protecting bar left protecting bar
•
Take apart air filter cover and screw up bolt.
•
Take out filter element
•
Compress air or use dry brush to clean filter
element.
•
Do the above opposite to reinstall the air filter.
NOTICE:
•
Do not use gasoline or low burning point solvent to
clean paper filter element.
•
When take out the rear protecting bar& left protecting
bar, please under the guiding of Professional
Battery maintenance
（
Fig 21
）
It is adopted the airtight battery (don
’
t add water).
Notice: Do not take apart the airtight
•
If the motorcycle have not been used for a
long time.
Taking off the battery and putting it into a dry and place.
•
The head of battery was corroded, please take
it off and
clean. (Can use boil water)
NOTICE: turn off the ignition switch, take apart negative pole
○
-
first, but install positive pole
○
+
when you are installing.
Fig 21
Fig20
