EN
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6. Abnormal noise when the engine is running
Problem
Cause
Remedy
There is noise
of beating
Piston, piston ring or cylinder is worn
Tie rod or piston pin and piston pin hole is worn
Crankshaft main bearing is worn
Piston ring is broken
Replace the worn
Replace the worn
Replace
Replace
Metallic type noise
Too much carbon deposit in combustin chamber
Too small electrode clearance of spark plug
Engine is flooded with fuel
Improper fuel brand
Engine is excessively hot
Clear away carbon deposit
Adjust electrode clearance properly
Check relative parts such as carburetor
Replace fuel
Find the cause and eliminate it
Other type
of noise
Improper valve clearance
Fly wheel is not connected with crankshaft tightly
Readjust valve clearance properly
Connect tightly
Содержание 043034
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