29
Maintenance and care
Additional problems
Diagnosis
Cause
Solution
Poor acceleration.
Clogged air filter.
Clean the air filter.
Clogged fuel filter.
Replace the fuel filter.
Lean fuel/air mixture.
Consult your dealer
Idle speed set too low.
Adjust.
Engine stops abruptly.
Switch turned off.
Reset the switch and re-start.
Fuel tank empty.
Refuel.
Clogged fuel filter.
Replace fuel filter.
Water in the fuel.
Drain; replace with clean fuel.
Shorted spark plug or loose
terminal.
Clean or replace spark plug, tight-
en the terminal.
Ignition failure.
Consult your dealer
Piston seizure.
Consult your dealer
Engine difficult to shut off.
Ground (stop) wire is discon-
nected, or switch is defective.
Test and replace as required.
Overheating due to incorrect
spark plug.
Idle engine until cool. Clean and
regap the plug to 0.6 - 0.7 mm.
Correct plug.
Overheated engine.
Idle engine until cool.
Cutting attachment rotates at engine idle.
Engine idle too high.
Adjust.
Broken clutch spring or worn
clutch spring boss.
Replace spring/shoes as required,
check idle speed.
Loose attachment holder.
Inspect and re-tighten holders se-
curely.
Engine will not idle down.
Engine idle too high.
Adjust.
Engine has an air leak.
Consult your dealer
Excessive vibration.
Warped or damaged cutting at-
tachment.
Inspect and replace attachment as
required.
Loose gearcase.
Tighten gearcase securely.
Bent main shaft/worn or dam-
aged bushings.
Inspect and replace as necessary.
Cutting attachment will not move
Shaft not installed in power-
head or gearcase
Inspect and reinstall as required.
Broken shaft.
Damaged gearcase.
Consult your dealer
Checking and maintenance requires specialist knowledge. If you are unable to check and maintain the product or deal with a
fault yourself, consult your dealer. Do not attempt to dismantle the product.
Consult your dealer in the event of a problem that is not covered in the table above, or other such concerns.
For spare parts and consumables, please use only genuine parts and designated products and components. Using parts from
other manufacturers or non-designated components may result in a malfunction.
NOTE
Soft Start
(See page 2)
When starter handle cannot be pulled lightly, the trouble is diagnosed as failure of engine inside.
Please consult your dealer.
If disassembled inadvertently, it can cause injury.
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