Poulan 271490 Problem, Cause, Correction, Loss of power, Excessive, vibration, Engine continues

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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