Sakai PF120, Shop Manual

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3-004
INSPECTION AND MAINTENANCE
2. BASIC TROUBLESHOOTING
Refer to following basic troubleshooting table if product have some problems or failures.
If the problem cannot be remedied, contact to Sakai authorized dealer or Sakai service department.
Symptom
Cause Action
Engine will not start or
engine malfunction.
No fuel in tank. Con fi rm no fuel leak and fi ll with fuel in tank.
No fuel at carburetor. Clean fuel fi lter or strainer.
Fuel valve does not open properly. Disassemble and check fuel valve.
Main jet or nozzle in carburetor
clogged or fuel over
fl owing.
Disassemble, clean or adjust carburetor.
No spark. Check spark plug gap, insulation, dirt or damage
and adjust plug gap. Replace it if necessary.
Check ignition coil and adjust coil gap.
Engine switch is faulty. Check engine switch.
Water, dust or air in fuel system. Flush fuel system.
Air cleaner is dirty or clogged. Check and clean air cleaner. Replace it if
necessary.
Use deteriorated fuel.
Flush fuel system and fi ll with recommended fuel.
Cylinder compression is too low. Check cylinder head, gasket, valve or valve seat.
Check excessive carbon has accumulated in
combustion chamber.
Check piston ring, piston or cylinder for worn.
Check and adjust valve clearance.
Tighten cylinder head and spark plug correctly.
Recoil starter internal mechanism
malfunction.
Disassemble, check and clean recoil starter inner
parts.
Vibration does not work or
weak.
Loosen or slip V-belt.
Check and adjust V-belt. Replace it if necessary.
Engine speed is too low.
Adjust correct engine speed.
Centrifugal clutch is faulty.
Check and replace centrifugal clutch.
Eccentric shaft hold bearing
damaged.
Check bearing and replace it if necessary.
Insuf fi cient vibrator oil.
Replenish vibrator oil.
Compactor moves neither
forward nor backward. Insuf fi cient oil in forward-reverse
lever pump.
Fill oil to correct level.
Piston in forward-reverse lever pump
faulty.
Replace forward-reverse lever pump.
Cylinder is faulty.
Check, clean and bleeding air from cylinder.
Variable weight positon does not
shift.
Disassemble and check pin in variable weight
shaft. Replace it if necessary.