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TROUBLE SHOOTING CHART
18
F–041105C
TROUBLE CAUSE CORRECTION
Engine difficult to start
Stale fuel Drain fuel tank. Fill with fresh
fuel.
or
Clogged fuel filter Replace fuel filter
Engine runs erratically
Dirt in fuel tank or out of fuel Clean fuel tank.
Engine runs erratically
or
Carburetor out of adjustment See Carburetor Adjustment
section.
or
Engine will not run at full
Fouled spark plug Clean and set spark plug
gap.
E
ng
i
ne
w
ill
no
t
run
a
t f
u
ll
speed
Dirty air filter Replace air filter.
Engine smokes
excessively
Plugged air filter Replace air filter.
Debris interfering with blade Clean debris from blade.
Cutting blade will not
rotate
Loose blade Tighten blade nut.
rotate
Defective V–belt Replace V–belt.
Blade will not cut properly
Defective quill bearings Replace the quill assembly.
Bl
a
d
e
w
ill
no
t
cu
t
proper
l
y
Damage or worn blade Reverse the blade or replace
the blade.
Excessive vibration Loose parts Stop engine immediately.
Tighten all fasteners. If
vibration continues, take the
unit to an Authorized Service
Center.