Shindaiwa M242/EVC Manual Del Operador página 13

Troubleshooting Guide (Continued)
What To Check
Is the engine
overheating?
Engine is rough
at all speeds.
May also have
black smoke
and/or unburned
fuel at the
exhaust.
Engine is
knocking.
LOW POWER OUTPUT
Possible Cause
Operator is overworking the machine.
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.
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.
Remedy
Shorten trimmer line. Cut at a slower rate.
Consult with an authorized servicing dealer.
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.
Clean, repair or replace as necessary.
Consult with an authorized servicing dealer.
Service the air cleaner element.
Tighten or replace. Replace the plug with an
BPMR6A or equivalent resistor type spark plug
of the correct heat range.
Repair or replace filter and/or fuel line.
Replace the fuel.
Consult with an authorized servicing dealer.
See above.
Check fuel octane rating; check for presence of
alcohol in the fuel (pg. 7). Refuel as necessary.
Consult with an authorized servicing dealer.
13