Repair Flow Chart - Hitachi CS 51EAP Service Manual
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Also See for CS 51EAP:
- Handling instructions manual (112 pages) ,
- Safety instructions and instruction manual (64 pages) ,
- Handling instructions manual (76 pages)
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Pull the starter handle.
Is pulling possible?
Impossible to pull
OK
There is compression.
No compression
OK
Is the spark plug
contaminated with foreign
matter?
Contaminated
OK
Remove the spark plug to
check for sparks.
Sparks are generated.
No spark
OK
Return the spark plug
and plug cap to the
original positions, and
then perform proper
startup operation.
Confirm that the tip of the
spark plug becomes wet
with fuel.
Dry
OK
Wet spark plug due to
excessive supply of fuel
Wet
OK
Repair flowchart
Seized or broken piston ring
Seized piston or cylinder
Seized or broken needle bearing of the crank
shaft
Seized ball bearing
Magneto rotor contact with ignition coil
Broken recoil starter
Faulty starter pawl
Faulty piston ring
Worn piston ring
Worn piston
Worn or damaged oil seal
Worn cylinder
Defective sealing of the packing
Defective decompression valve
Remove foreign matter.
Stop switch not at startup position
Dirty or faulty spark plug
Improperly connected plug cap
Disconnected or improperly connected high
voltage cord and other wiring
Ground connection of high voltage cord and
other wiring
Disconnected or faulty ignition coil
Excessive gap between magneto rotor
circumference and ignition coil
No fuel in fuel tank or improper mixing ratio
Clogged fuel filter
Bent fuel pipe
Cracked fuel pipe
Fallen fuel pipe
Faulty tank vent hole (inner cap)
Faulty pump diaphragm of carburetor ass'y
Dirt-clogged carburetor ass'y
Poorly adjusted carburetor ass'y
Starter handle pulled repeatedly with choke
button pulled out (set at "startup")
-4-
Replacement
Replacement
Replacement
Replacement
Adjustment
Inspection/replacement
Inspection/replacement
Cleaning/replacement
Replacement
Replacement
Replacement
Replacement
Replacement
Replacement
Disassembly/cleaning
Setting to startup
position
Cleaning/inspection
Inspection/replacement
Inspection/replacement
Inspection
Replacement
Adjustment
Add properly mixed fuel
(25:1 to 50:1).
Cleaning/replacement
Adjustment
Replacement
Connection
Replacement
Replacement
Cleaning
Adjustment
Dry the spark plug.
Remove excessive fuel.
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