GAOKIN E02, Maintenance Manual

Page: 21 / 30

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Item Cause Solution
Starting transmission gear damaged（with
abnormal sound）
Check and replace
Starting one way clutch failure （motor
idling）
Check and replace
Starting motor failure Replace
Starting relay failure Replace
Insurance off Replace
Ignition
system
Trigger signal connection wires not good Check connection
High voltage connecting wire unreliable
Ensure high voltage
connect wires reliable
Spark plug
fault
Spark plug carbon
deposition
Remove sparkplug carbon
deposition
Spark plug damaged Replace new sparkplug
Spark plug clearance too
big or too small
Adjust sparkplug clearance
Ignition coil damaged Replace ignition coil
Igniter damaged(carburetor) Replace igniter
Crankshaft sensor failure（trigger） Clean scrap iron or replace
EMS EFI system fault Diagnostic with EMS
Intake/exhaust
system
Air filter blocked Clean air filter
Air intake system pipe air leakage
Ensure intake pipe 、 air
filter not damaged ， each
connection fixed 、 no air
leakage
Exhaust
clog
Muffler blocked Dredge
Vent or muffler carbon
deposited
Remove carbon
Valve timing
Bore pressure too high 、 starting
resistance too much
Adjust valve clearance
Check pressure regulator
and replace camshaft
Valve not timing
Check and adjust valve
timing
Engine
Cylinder
pressure not
enough
Cylinder head and body
connect face leakage Replace sealing gasket ，
tight cylinder bolt
Spark plug leakage Tight spark plug