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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.
12
LOW POWER OUTPUT
Possible Cause
Operator is overworking
the unit.
Carburetor air/fuel
mixture is too lean.
Improper fuel ratio.
Fan, fan cover, cylinder
fins dirty or damaged.
Carbon deposits on
piston or in the muffler.
Clogged air filter
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.
Remedy
Use lower throttle
setting.
Consult with an authorized
servicing dealer.
Refill with clean fresh unleaded
gasoline with a pump octane of
87 or higher, mixed with 50:1
Shindaiwa Premium 2-cycle mixing
oil or an equivalent high quality
2-cycle mixing oil. Re-start.
Clean, repair or replace
as necessary.
Consult with an authorized
servicing dealer.
Clean or replace the air filter.
Tighten or replace the spark plug.
See page 9.
Repair or replace
filter and/or fuel line.
Drain and refill with clean fresh
unleaded gasoline with a pump
octane of 87 or higher, mixed
with 50:1 Shindaiwa Premium
2-cycle mixing oil or an equiva-
lent high quality 2-cycle mixing
oil. Re-start.
Consult with an authorized
servicing dealer.
Consult with an authorized
servicing dealer.
Idle engine until cool; find
reason for overheat.
Check fuel octane rating;
check for presence of
alcohol in the fuel. Refuel as
necessary. See page 6.
Consult with an authorized
servicing dealer.
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