Poulan 331 instruction manual Fuel System, Troubleshooting Table, Engine, Other, Cause, Remedy

If your unit is to be stored for a period of time: S Clean the entire unit before lengthy

storage.

SStore in a clean dry area.

SLightly oil external metal surfaces.

FUEL SYSTEM

Under FUELING ENGINE in the OPERA- TION section of this manual, see message la- beled IMPORTANT regarding the use of ga- sohol in your engine.

Fuel stabilizer is an acceptable alternative in minimizing the formation of fuel gum deposits during storage. Add stabilizer to the gasoline in the fuel tank or fuel storage container. Fol- low the mix instructions found on stabilizer container. Run engine at least 5 minutes after adding stabilizer.

TROUBLESHOOTING TABLE

ENGINE

SRemove spark plug and pour 1 teaspoon of 40:1, 2-cycle engine oil (air cooled) through

the spark plug opening. Slowly pull the starter rope 8 to 10 times to distribute oil.

SReplace spark plug with new one of recom-

mended type and heat range.

SClean air filter.

S Check entire unit for loose screws, nuts, and bolts. Replace any damaged, broken, or worn parts.

S At the beginning of the next season, use only fresh fuel having the proper gasoline to oil ratio.

OTHER

SDo not store gasoline from one season to

another.

S Replace your gasoline can if it starts to rust.

WARNING: Always stop unit and disconnect spark plug before performing all of the recommended remedies below except remedies that require operation of the unit.

TROUBLE	CAUSE		REMEDY
Engine will not	1. Engine flooded.		1.	See “Starting a Flooded Engine” in
start.				Operation Section.
	2. Fuel tank empty.		2.	Fill tank with correct fuel mixture.
	3. Spark plug not firing.		3.	Install new spark plug.
	4. Fuel not reaching		4.	Check for dirty fuel filter; replace.
		carburetor.		Check for kinked or split fuel line;
				repair or replace.
	5. Carburetor requires		5.	See “Carburetor Adjustment” in
		adjustment.		Service and Adjustments Section.
Engine will	1.	Carburetor requires	1.	See “Carburetor Adjustment” in
not idle		adjustment.		Service and Adjustments Section.
properly.	2.	Crankshaft seals worn.	2.	Contact an authorized service dealer.
	3.	Compression low.	3.	Contact an authorized service dealer.
Engine will not	1.	Air filter dirty.	1.	Clean or replace air filter.
accelerate,	2. Spark plug fouled.		2.	Clean or replace plug
lacks power,	3.	Carburetor requires		and regap.
or dies under			3.	See “Carburetor Adjustment” in
a load.		adjustment.		Service and Adjustments Section.
	4.	Carbon build-up on	4.	Contact an authorized service dealer.
		muffler outlet screen.
	5.	Compression low.	5.	Contact an authorized service dealer.
Engine	1.	Choke partially on.	1.	Adjust choke.
smokes	2.	Fuel mixture incorrect.	2.	Empty fuel tank and refill with
excessively.	3.	Air filter dirty.		correct fuel mixture.
			3.	Clean or replace air filter.
	4.	Carburetor requires	4.	See “Carburetor Adjustment” in
		adjustment.		Service and Adjustments Section.
Engine runs	1. Fuel mixture incorrect.		1.	See “Fueling Engine” in Operation
hot.				section.
	2. Spark plug incorrect.		2.	Replace with correct spark plug.
	3. Carburetor requires		3.	See “Carburetor Adjustment” in
		adjustment.		Service and Adjustments Section.
	4. Carbon build-up on		4.	Contact an authorized service dealer.
		muffler outlet screen.

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