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2 CYCLE ENGINE TROUBLESHOOTING CHART (Cont.)
Cause
Remedy
ENGINE OVERHEATS (continued)
Excessive load on engine
Check operation of associated equipment. Reduce
excessive load.
Carbon in combustion chamber
Remove cylinder head or cylinder and clean carbon
from head and piston.
Improper amount of oil in fuel mixture
Drain tank; fill with correct mixture.
ENGINE SURGES OR RUNS UNEVENLY
Fuel tank cap vent hole clogged
Open vent hole.
Crankcase air leak
Inspect and replace gasket or seal.
Governor parts sticking or binding
Clean, and if necessary repair governor parts.
Carburetor throttle linkage or throttle shaft and/or
Clean, lubricate, or adjust linkage and deburr throttle
butterfly binding or sticking
shaft or butterfly.
ENGINE VIBRATES EXCESSIVELY
Engine not securely mounted
Tighten loose mounting bolts (See equipment
instructions).
Bent crankshaft
Replace crankshaft.
Driven equipment out of balance
Recheck driven equipment.
Piston installed incorrectly. Engines with wrist
Install piston correctly.
pin offset.
Содержание AH520 -
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