Rato 60-7559-6 Manuel Du Propriétaire page 26

TROUBLESHOOTING
2. GASOLING ENGINE POWER OUTPUT INSUFFICIENCY:
TROUBLE
Air in fuel line or fuel line clogged
Main oil flow hole is not adjusted properly Readjust
In carburetor, needle valve hole and main
oil flow hole clogged.
Fuel cock is clogged up.
Too much carbon deposit in combusting
chamber.
Too much car bon fouling in muffler and
exhaust pipe.
Air cleaner is clogged up.
Intake pipe is leaking
Piston or cylinder or piston ring is worn
Air leakage from the surface by which cyl-
inder block contacting with cylinder head.
Too big or too small valve clearance.
Valve tightness is poor.
3. GASOLINE ENGINE RUNNING UNSMOOTHLY:
TROUBLE
Piston, cylinder or piston ring is worn exces-
sively.
Piston pin and piston pin hole are worn exces-
sively.
Tie rod small head is worn excessively.
Roller bearing for crankshaft main shaft is
worn.
Engine is too hot
Too much carbon deposit in combustion chamber Clear away
Improper gasoline brand or low gasoline quality Replace with qualified gasoline
There is water in float chamber
improper spark plug electrodes clearance
Something wrong with induced coil, and so on Check and replace damaged parts
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CAUSE
CAUSE
REMEDY
Exhaust air or dredge fuel line
Clean and blow to get through
Clean, replace damaged part
Clear away
Clear away
Clean air cleaner filter element
Repair or replace
Replace the worn
Replace cylinder gasket
Readjust
Repair
REMEDY
Replace the worn
Replace piston or piston pin
Replace tie rod
Replace roller bearing
Shoot trouble
Clean
Adjust