Rato 60-7559-6 Manuel Du Propriétaire page 28

TROUBLESHOOTING
6. THERE EXISTS ABNORMAL NOISE WHEN ENGINE RUNNING
TROUBLE
Piston, piston ring or cylinder is worn
Connection rod or piston pin and piston pin
hole are worn
Crankshaft main neck is worn
Piston ring is broken
Too much carbon deposit in combusting
chamber
Too small electrode clearance of spark plug
Engine fuel is too much
Improper fuel brand
Engine is overheat
Improper valve clearance
Fly wheel is not connected with crankshaft
tightly
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CAUSE REMEDY
Replace the worn part
Replace the worn part
Replace bearing
Replace piston ring
Clear away carbon deposit
Adjust electrode clearance prop-
erly
Check relative parts such as car-
buretor
Replace fuel
Find a cause and eliminate it
Readjust valve clearance prop-
erly
Connect tightly