Shindaiwa AH254 Trimmer User Manual


 
20
Is the engine overheating?
Engine is rough at all
speeds. May also have
black smoke and/or
unburned fuel at the
exhaust.
Operator is overworking the unit.
Carburetor mixture is too lean.
Improper fuel ratio.
Fan, fan cover, cylinder fins dirty
or damaged.
Carbon deposits on the piston or
in the muffler.
Clogged air cleaner element.
Loose or damaged spark plug.
Air leakage or clogged fuel line.
Water in the fuel.
Piston seizure.
Faulty carburetor and/or diaphragm.
Overheating condition.
Improper fuel.
Carbon deposits in the
combustion chamber.
Use a lower throttle setting.
Consult with an authorized Shindaiwa
servicing dealer.
Refill with fresh, clean unleaded gasoline with a pump octane
of 89 or higher mixed with an air cooled engine oil that meets
or exceeds ISO-L-EGD and/or JASO FD classified oils at 50:1
gasoline/oil ratio.
Clean, repair or replace as necessary.
Consult with an authorized Shindaiwa
servicing dealer.
Service the air cleaner element.
Tighten or replace the spark plug.
Check the Specifications section for the correct plug and gap
for your unit.
Repair or replace fuel filter and/or
fuel line.
Refill with fresh, clean unleaded gasoline with a pump octane
of 89 or higher mixed with an air cooled engine oil that meets
or exceeds ISO-L-EGD and/or JASO FD classified oils at 50:1
gasoline/oil ratio.
Consult with an authorized Shindaiwa servicing dealer.
Consult with an authorized Shindaiwa
servicing dealer.
Refill with fresh, clean unleaded gasoline with a pump octane
of 89 or higher mixed with an air cooled engine oil that meets
or exceeds ISO-L-EGD and/or JASO FD classified oils at 50:1
gasoline/oil ratio.
Consult with an authorized Shindaiwa
servicing dealer.
What To Check
Possible Cause
Remedy
LOW POWER OUTPUT
Engine is knocking.
Troubleshooting Guide (continued)