Craftsman 358.798260-32cc manual Trouble Shooting Suggestions, €. Acceleration Check

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adjustments.

"_kWARNING

Serious injury to the operator and others can occurifthe carburetor is not properly adjusted.:

•Poor engine performance can be a result of other causes such as dirty air: filter, carbon build-up

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-_:---:-follow the instructions. The basic carburetor settings _

are provided in the event they are required.

'_	"	Turn	the	Low	Speed	Mixture	Screw and		the:High"
		Speed		....	Screw	clockwtse		untd they stop.		-
			Mixture
		t3_, ,.,m t,,_,			th ....	_,,,_	until	thin, are tieht as
		damage		to'theneedle+seatscan			occur, v"		*"

b. Turn the Low Speed Mixture and High Speed Mix- ture Sct:ews one full turn counterclockwise.

c. Follow instructions "a. Preparation,' through "f.

High Speed Mixture Adjustment.,

a. PREPARATION

i.) Use a fresh fuel mix. See "Fueling Your Engine:' +

2.iMake sure line extends tOthe length allowed by line limiter to provide'correct load on engine.

3.)Start the engine. Cut grass for 3 minutes to warm

on muffler outlets, etc. See "Trouble Shooting

Chart" before proceeding' with carburetor

...... :

engine. The engine must be at operating temper- ature before carbt_retor adjustments can be per-

:adjustments.::

$ The carburetor has been carefully adjusted at the factory. However, the operator must be sure that

•: adjustments are made when any of the'conditions occur as mentioned in "Trouble Shooting Sugges-

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formed correctly ,

4. )Stop engine and remove air filter by pulling it out

with your fingers. Refer to "Specifications" for location.

tions" below.

•Very small adjustments can affect engine perfor- mance. It is important to turn the screw a very small amount _per adjustment and test performance before making further adjustments. Each adjustment should be no more than the width oflhe slot in the adjusting screws.

•This is a complicated task. It is important to follow

instructions in sequence as indicated.

1.TROUBLE SHOOTING SUGGESTIONS

--Engine will not continue to run at idle position. See "b" Idle Speed Adjustment" and "e. Low

Speed Mixture Adjustment:'

_ Blade or Trimmer Head continues to spin when the engine idles. See"b. Idle Speed Adjustment" and "d. Deceleration Check:'

--Engine dies or hesitates when it should accelerate. See "c. Acceleration Check"

--Ia3ss ofcutting power which cannot be corrected by cleaning the air f'dter. See "f. High Speed Mix- ture Adjustment"

--Engine does not return to idle from full throttle within 2 seconds, See "d, Deceleration Check"

--Engine will not run. See "Trouble Shooting Chart" Then, if'the carburetor requires adjust-. ment, begin with"2. Basic Carburetor Settings:'

The Blade	or trimmer	line will	be spinning-dii-l:irig
most of this	&WAaSISG			......I
	procedure.	Wearyour	protective	equipment
.__d°bse_e	all safety	instru_ction.s.	.....
-+2.BMIIC CARB_TOR			l_Oll

NOTE: In most cases, your engine can be made to

run properly with minor carburetor adjusunents. l_fer to "Trouble Shooting Suggestions" in the left column for the condition you are experiencingand

b. IDLE SPEED ADJTtJSTMENT l.)Ailow engine to idle.

2.)Adjust Idle - Speed Screw until the:: engine

continues to run •without stalling and .__ without the trimmer head moving.

--Turnsc-_ clockwise to increase engine speed + if the engine stalls or dies.

--Turn screw counterclockwise to slow engine down and/or to keep blade or trimmer head from turning.

3.)Follow instructions]n "c. Acceleration Check'" and "d. Deceleration Check"

4.)N 9 furthei" adjustments are necessary if the

trimmer head does not turn at idle speed and L if performance is satisfactory.

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Recheck idle speed after each adjustment. The blade or trimmer head must not turn at idle speed to avoid serious injury to the operator and others.

€. ACCELERATION CHECK

i.)Allow engine to idle.

2,)$qu©cz¢ Trisger fully

a. If performance hsatisfactory, proceed to "d.

Deceleration Check."

b. If the engine does not accelerate smoothly,

tum_e _LowSpeed MixtureScrew counter- clockwise a small amount (no more, thanthe

width of the slot in the adjusting screw).

3.)Repeat step "2.)" until smooth acceleration is

obtained,

NOTE: It may be necessary to repeat "b. Idle

Speed Adjustment" through "'c. Acceleration Check :' to obtain correct adjustments.

<) Follow instructions in "d. Deceleration Check .'"