Shindaiwa M242/EVC Manual Del Operador página 14

Troubleshooting Guide (Continued)
Symptom
Poor
acceleration.
Engine stops
abruptly.
Engine difficult
to shut off.
Cutting
attachment
rotates at
engine idle.
Symptom
Excessive
vibration.
Cutting
attachment will
not rotate.
14
ADDITIONAL PROBLEMS
Possible Cause
Clogged air cleaner.
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.
ADDITIONAL PROBLEMS
Possible Cause
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 the air cleaner element.
Replace the fuel filter.
Consult with an authorized servicing dealer.
Adjust: 3,000 (±250) rpm (min
Reset the switch and re-start.
Refuel.
Replace filter.
Refill with fresh, clean unleaded gasoline with
a pump octane of 87 or higher mixed with a 2-cycle
air cooled mixing oil that meets or exceeds ISO-L-EGD
and/or JASO FC classified oils at 50:1 gasoline/oil ratio.
Tighten or replace the plug with a BPMR6A or
equivalent resistor type spark plug of the correct heat
range. Set spark plug electrode gap to 0.024-0.028 inch
(0.6-0.7 mm). For Electromagnetic compliance (EMC)
use NGK BPMR6A. Restart.
Replace the ignition unit.
Consult with an authorized servicing dealer.
Test and replace as required.
Replace the plug with a BPMR6A or equivalent resistor
type spark plug of the correct heat range. Set spark plug
electrode gap to 0.024-0.028 inch (0.6-0.7 mm). For
Electromagnetic compliance (EMC) use NGK BPMR6A.
Restart.
Idle engine until cool.
Refer to page 13 (overheated engine).
Set idle: 3,000 (±250) rpm (min
Replace spring/shoes as required, check idle speed.
Inspect and re-tighten holders securely.
Remedy
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.
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