Sears 25 HHT Engine, Other, Need Assistance?, Need Service Parts?, Troubleshooting Table, Cause

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 (see RE-

PLACE SPARK PLUG section).

SClean air filter.

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

SAt 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.

SReplace your gasoline can if it starts to rust.

NEED ASSISTANCE?

Call 1-800-554-6723 for assistance.

NEED SERVICE PARTS?

Contact your dealer.

TROUBLESHOOTING TABLE

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

TROUBLE	CAUSE		REMEDY
Engine will not	1.	ON/OFF switch in the	1. Move ON/OFF switch to the ON
start.	2.	OFF position.		position.
		Engine flooded.	2. See “Starting a Flooded Engine”
				in Operation Section.
	3.	Fuel tank empty.	3. Fill tank with correct fuel mixture.
	4.	Spark plug not firing.	4. Install new spark plug.
	5.	Fuel not reaching	5. Check for dirty fuel filter; replace.
		carburetor.		Check for kinked or split fuel line;
				repair or replace.
	6.	Compression low.	6. Contact an authorized service dealer.
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,				and regap.
or dies under	3.	Carburetor requires	3.	Contact an authorized service dealer.
a load.	4.	adjustment.	4.	Contact an authorized service dealer.
		Carbon build-up on
		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.	3.	correct fuel mixture.
				Clean or replace air filter.
	4. Carburetor requires		4.	Contact an authorized service dealer.
		adjustment.
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.	Contact an authorized service dealer.
		adjustment.	4.	Contact an authorized service dealer.
	4. Carbon build-up on
		muffler outlet screen.

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