Homelite UT20024B, UT20004B manual Troubleshooting, Problem, Possible Cause, Solution, Page

TROUBLESHOOTING

PROBLEM	POSSIBLE CAUSE	SOLUTION
Engine will not start	1. No spark.	1. Check spark. Remove spark plug. Reattach the
		spark plug cap and lay spark plug on metal
		cylinder. Pull the starter rope and watch for
		spark at spark plug tip. If there is no spark,
		repeat test with a new spark plug.
	2. No fuel.	2. Push primer bulb until bulb is full of fuel. If bulb
		does not fill, primary fuel delivery system is
		blocked. Contact a servicing dealer. If primer
		bulb fills, engine may be flooded, proceed to
		next item.
	3. Engine is flooded.	3. Remove spark plug, turn trimmer so spark plug
		hole is aimed at the ground. Move choke lever
		to “RUN” (C) position and pull starter cord 10
		to 15 times. This will clear excess fuel from
		engine. Clean and reinstall spark plug. Pull
		starter three times with choke lever at “RUN”.
		If engine does not start, move choke lever to
		“FULL CHOKE” (A) position and repeat normal
		starting procedure. If engine still fails to start,
		repeat procedure with a new spark plug.
	4. Starter rope pulls harder now than	4. Contact a servicing dealer.
	when new.
Engine starts but will not	Engine requires approximately three	Allow engine to completely warm up. If engine
accelerate	minutes to warm up.	does not accelerate after three minutes, contact
		a servicing dealer.
Engine starts but will only	Carburetor requires adjustment.	Contact a servicing dealer.
run at high speed at half
choke
Engine does not reach full	1. Check oil fuel mixture.	1. Use fresh fuel and the correct 2-cycle oil mix.
speed and emits excessive	2. Air filter is dirty.	2. Clean air filter. Refer to “Replacing and Clean-
smoke		ing Air Filter” earlier in this manual.
	3. Spark arrestor screen is dirty.	3. Contact a servicing dealer.
Engine starts, runs, and ac-		Turn idle speed screw clockwise to increase idle
celerates but will not idle	Idle speed screw on carburetor needs	speed.
	adjustment.

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