McCulloch 250CXL instruction manual Troubleshooting Table, Cause, Remedy

TROUBLESHOOTING TABLE

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. ON/OFF switch in OFF		1.	Move ON/OFF switch to ON position.
start.		position.
	2. 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. Carburetor requires		6.	Contact an authorized service dealer.
		adjustment.
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.	Contact an authorized service dealer.
	5.	Compression low.
Engine	1.	Fuel mixture incorrect.	1. Empty fuel tank and refill with
smokes				correct fuel mixture.
excessively.	2.	Air filter dirty.	2. Clean or replace air filter.
	3.	Carburetor requires	3. Contact an authorized service dealer.
		adjustment.
Engine runs	1. Fuel mixture incorrect.		1. Empty fuel tank and refill with
hot.				correct fuel mixture.
	2. Spark plug incorrect.		2. Replace with correct spark plug.
	3. Carburetor requires		3. Contact an authorized service dealer.
		adjustment.
	4. Carbon build-up on		4. Contact an authorized service dealer.
		muffler outlet screen.

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