Shindaiwa B530 Owner's Manual page 21

Troubleshooting Guide (Continued)
Symptom
Poor
acceleration.
Engine stops
abruptly.
Engine difficult
to shut off.
Cutting
attachment
moves at
engine idle.
Excessive
vibration
Attachment will
not rotate
Additional Problems
Possible Cause
Clogged air filter.
Clogged fuel filter.
Lean fuel/air
mixture.
Idle speed set too low.
Switch turned off.
Fuel tank empty.
Clogged fuel filter.
Water in the fuel.
Shorted spark plug or
loose terminal.
Ignition failure.
Piston seizure.
Ground (stop) wire is
disconnected, or
switch is defective.
Overheating due to
incorrect spark plug.
Overheated engine.
Engine idle too high.
Broken clutch spring
or worn clutch spring
boss.
Loose attachment
holder.
Warped or damaged
attachment.
Loose gearcase.
Bent main shaft/worn
or damaged bushings.
Shaft not installed
in powerhead or
gearcase.
Broken shaft.
Damaged gearcase.
Remedy
Clean or replace the air filter.
Replace the fuel filter.
Consult with an authorized
servicing dealer.
-1
Adjust: 2,750 min
Reset the switch and re-start.
Refuel. See page 11.
Replace fuel filter.
Drain; replace with clean fuel.
See page 11.
Clean or replace spark plug with
a NGK BMR6A. Tighten the terminal.
Replace the ignition unit.
Consult with an authorized
servicing dealer.
Test and replace
as required.
Replace spark plug with a NGK BMR6A.
Idle engine until cool.
-1
Set idle: 2,750 min
Replace spring/shoes as
required, check idle speed.
Inspect and re-tighten
holders securely.
Inspect and replace
attachment as required.
Tighten gearcase securely.
Inspect and replace
as necessary.
Inspect and reinstall
as required.
Consult with an authorized
servicing dealer.
Consult with an authorized
servicing dealer.
21