TROUBLESHOOTING
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NOTE:
The following trouble, not including all possible troubles, is a help for trouble guide. Please refer to
relevent contents for the inspection, adjustment and replacement of part.
STARTING FAILURE/HARD STARTING
FUEL SYSTEM
Fuel tank
1、No oil
2、Fuel filter is clogged
3、Fuel pump filter net is clogged
4、Breather tube is clogged
5、Fuel is deteriorated or polluted
Fuel pump
1、Clogged fuel hose
2、Damaged vacuum hose
Air filter Clogged air filter element
Gasoline filter Block up
ELECTRICAL SYSTEM
Spark plug
1、Improper plug gap
2、Worn electrodes
3、Wire between terminals broken
4、Wrong Spark plug heat value
5、Faulty spark plug cap
6. High voltage wires strapped on frame cause shortage of high
pressure ignition energy
EFI system
1、 Broken ECU
2、 Clogged nozzle or the rupture the line from nozzle to ECU
3、 Damage of engine speed signal sensor
4、 Rupture of the line from engine speed signal sensor to ECU
5、 Broken inlet pressure or temperature sensor or damaged line
to ECU
6、 Broken air throttle or damage line to ECU.
7、Broken vice line (cable) of electrical injection
Switches and wires
1、 Broken main cable
2、 Broken main switch
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