Hyundai H740E Manual page 26

4. STOP SUDDENLY WHEN RUNNING
TROUBLE
Fuel supply
system
Stop suddenly
when running.
Ignition
system
The other
5. GASOLINE ENGINE IS OVERHEAT
TROUBLE
Exhaust pipe blocked up
Shroud leaking
Gasoline engine is
Cooling fan i loosen and misfunction
overheat
Connection rod deformation to make piston and
cylinder bushing side wear
Cylinder or piston or piston ring is worn to make
hunting between cylinder and crankcase
Improper adjustment of engine governor to produce
speed high.
Crankshaft main bearing burnt out
The gasoline engine should be kept about 80 ~ 110
temperature around the outlet of the shroud. If the temperature is too
high, it will indicate the gasoline engine overheating.
CAUSE
Carburetor is clogged
Float is leaking
Needle valve is sticked
Spark plug is punctured, or short-
circuited by carbon deposit
Side electrode of spark plug is dropped
out
High-tension wire is dropped out
Ignition coil is punctured or short-
circuited
Parking wire is located on engine body
Cylinder is seriously scored and valve
dropped out
CAUSE
TROUBLESHOOTING
REMEDY
Check fuel line and dredge
Repair
Replace spark plug
Replace spark plug
Weld on
Replace ignition coil
Find out meeting and insulate
Repair or replace damaged parts
REMEDY
Clean exhaust pipe
Repair damaged part
Reinstall well
Replace connection rod
Replace the worn parts
Readjust engine governor
Replace main bearing
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