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19
● Make sure there is no spilled fuel outside the engine and that the spark plug isn’t dipped with
fuel.
● To prevent fire, keep sparks far away from the spark plug mount hole.
2. By using starting motor
ITEM CAUSE REMEDY
Check battery connection Incorrect connection Correct
Check battery No charge or under charge,
corrosion
Check the breaker, charge
up the battery or replace it
Starting motor functions
normally
Be the same as kick-starter Conduct it in the same way
of kick-starter
Having fulfilled all the check items above, the engine still fails to work, contact your dealer for help.
II. LOW GASOLINE ENGINE POWER OUTPUT
TROUBLE CAUSE REMEDY
Ignition
system
Incorrect ignition time
Readjust ignition advance
angle
Air in fuel line or fuel line
clogged
Exhaust air or dredge fuel
line
Main oil flow hole is not
adjusted properly
Readjust
In carburetor, needle valve hole
and main oil flow hole clogged
Clean and blow to get
through
Fuel cock is clogged up
Clean, replace damaged
part
Too much carbon deposit in
combusting chamber
Clear away
Too much carbon fouling in
muffler and exhaust pipe
Clear away
Fuel supply
system
Air cleaner is clogged up Clean air cleaner filter
elemi
Intake pipe is leaking Repair or replace
Piston or cylinder or piston ring
is worn
Replace the worn
Air leakage from the surface by
which cylinder block contacting
with cylinder head
Replace cylinder gasket
Too big or too small valve
clearance
Readjust it
When turning
throttle greater,
speed in crease
responds slow or
speed is
decreased even
engine stops
running
Poor
compression
Valve tightness is poor repair
III. GASOLINE ENGINE CANNOT RUN SMOOTHLY
TROUBLE CAUSE REMEDY
Piston, cylinder or piston ring is worn
excessively
Replace the worn
Piston pin and piston pin hole are
worn excessively
Replace piston or piston pin
Engine is pinging
Tie rod small head is worn excessively
Replace tie rod
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