TROUBLE SHOOTING CHART

TROUBLE

CAUSE

CORRECTION

 

 

 

Engine difficult to start

Stale fuel

Drain fuel tank. Fill with fresh

 

 

fuel.

 

 

 

or

Clogged fuel filter

Replace fuel filter

 

 

 

 

Dirt in fuel tank or out of fuel

Clean fuel tank.

Engine runs erratically

 

 

 

Carburetor out of adjustment

See Carburetor Adjustment

 

 

section.

or

 

 

Fouled spark plug

Clean and set spark plug

 

 

 

gap.

Engine will not run at full

 

 

Dirty air filter

Replace air filter.

speed

 

 

 

Engine smokes

Plugged air filter

Replace air filter.

excessively

 

 

 

 

 

 

Debris interfering with blade

Clean debris from blade.

Cutting blade will not

 

 

Loose blade

Tighten blade nut.

rotate

 

 

 

Defective V–belt

Replace V–belt.

 

 

 

Blade will not cut properly

Defective quill bearings

Replace the quill assembly.

 

 

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.

 

 

 

F–041105C

18

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Murray EV3850x4NA manual Trouble Shooting Chart, Trouble Cause Correction

EV3850x4NA specifications

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