Hisun HS700UTV-4, Maintenance Handbook

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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