TROUBLESHOOTING CHART

 

PROBLEM

 

CAUSE

CORRECTION

 

 

 

 

 

 

Loss of power

Cutting too much grass/too

• Set in “Higher Cut” position/

 

 

 

fast.

 

reduce speed.

 

 

Throttle in “CHOKE”

Adjust throttle control.

 

 

 

position.

 

 

 

 

Build-up of grass, leaves

• Clean underside of mower

 

 

 

and trash under mower.

 

housing.

 

 

Dirty air filter.

Clean/replace air filter.

 

 

• Low oil level/dirty oil.

• Check oil level/change oil.

 

 

Faulty spark plug.

• Clean and regap or change

 

 

 

 

 

spark plug.

 

 

Dirty fuel filter.

Replace fuel filter.

 

 

• Stale or dirty fuel.

• Drain fuel tank and refill with

 

 

 

 

 

fresh gasoline.

 

 

Water in fuel.

• Drain fuel tank and carbure-

 

 

 

 

 

tor, refill tank with fresh

 

 

 

 

 

gasoline and replace fuel

 

 

 

 

 

filter.

 

 

• Spark plug wire loose.

• Connect and tighten spark

 

 

 

 

 

plug wire.

 

 

• Dirty engine air screen/fins.

• Clean engine air screen/fins.

 

 

Dirty/clogged muffler.

Clean/replace muffler.

 

 

• Loose or damaged wiring.

Check all wiring.

 

 

Carburetor out of

See “To Adjust Carburetor”

 

 

 

adjustment.

 

in Service Adjustments

 

 

 

 

 

section.

 

 

• Engine valves out of

Contact an authorized

 

 

 

adjustment.

 

service center/department.

 

 

 

 

 

 

 

Excessive

Worn, bent or loose blade.

Replace blade.

 

vibration

 

 

 

Tighten blade bolt.

 

 

Bent blade mandrel.

Replace blade mandrel.

 

 

Loose/damaged part(s).

Tighten loose part(s).

 

 

 

 

 

Replace damaged parts.

 

 

 

 

 

 

 

Engine continues

Faulty operator-safety

Check wiring, switches and

 

to run

 

presence control system.

 

connections. If not corrected,

 

when operator

 

 

 

contact an authorized

 

leaves seat with

 

 

 

service center/department.

 

with attachment

 

 

 

 

 

clutch engaged

 

 

 

 

 

Poor cut - uneven

Worn, bent or loose blade.

Replace blade. Tighten

 

 

 

 

 

blade bolt.

 

 

• Mower deck not level.

Level mower deck.

 

 

• Buildup of grass, leaves,

• Clean underside of mower

 

 

 

and trash under mower.

 

housing.

 

 

Bent blade mandrel.

Replace blade mandrel.

 

 

• Clogged mower deck vent

• Clean around mandrels to

 

 

 

holes from buildup of

 

open vent holes.

 

 

 

grass, leaves, and trash

 

 

 

 

 

around mandrels.

 

 

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Poulan 271491 manual Excessive