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Craftsman EZ3 917.256522 Owner's Manual page 25

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AND ADJUSTM
TO ADJUST
CARBURETOR
(See Fig. 34)
ACCELERATIONTEST-
The carburetor has been preset at the factory and adjust-
Move throttle control lever from slow (,_=)) to fast (,Ill
ment should not be necessary.
However, minor adjust-
position, if engine hesitates or dies, turn idle mixture
ment may be required to compensate for differences in fuel,
valve out (counterclockwise) 1/8 turn. Repeat test and
temperature, altitude or load. If the carburetor does need
continue to adjust, if necessary, until engine acceler-
_ . adjustment, proceed as follows:
ates smoothly_
'
'
' _|nger_)ral, turning idle mixture valve in (clockwise) de-
High speed Stop is factory adjusted.
Do not adjust -
._
crei_sesthe supp}y Offue! tothe engine giving a leaner fuel/
damage may )'esult.
': ' '
,' _!, ,at_';rnixttire._Turning.the idle mixture va!ve out (counter-
IMPORTANT:
: 'NEVF-R.TAMPER WtTH THE ENGINE
'.]. _ :"ii.c)oi_[.s'e)]NpreaSes the supp.lyb,f fuel tothe engine giving
:. GOVERNORi :WHICH 'IS',FACTORY SET FOR. PROPER
!!_i,:: "::i:_i,_cl_)_;_fuel/atrrntxttire.. ' _=. ,,_SII ,. :ii:. : ,;._.
_ ".!;_ : _,. !.:=i_.;. ,ENGINE.SPEED. OVERSPEEDING THE ENGINE ABOVE
:.;IMPORTANT: "DAt_IAGETO THE.NEEDLE:VALVE AND
.":=:_HEi!.FAGT.-ORYi
HIGH,
DANGEROUS. IF.YOUTHINKTHESPEED'ENGINE,GOVERNEDSETTING
CAN
BE
:_.._.'_t,:i:.,THEISEAT-IN
CARBURETOR MAY RESULT IF SCREW IS
; " HIGH:SPEED
NEEDS: ADJUSTING,
CONTACT YOUR
I.:%TUR'NEDINTOOTIGHTo
"
.NEAREST.
AUTHORIZED
,.SERVICE'
.CENTER/
:' ........ '.... '=""'" " _.....
DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND
.EXPERIENCE
TO-MAKE
ANY'NECESSARY
ADJUSTMENTS.
:
THROTTLE
......
iDLE SPEED
LEVER.
.
_
:
SCREW
:"":; !.'.'i,:i.:'Al"tclea'ner; a_sembly must be assernbled to the carbu-
' ... =_,:retorwhenmaking carburetor adjustments.
'
! ;: .:-_i!i _ Be,sure the throttle control cable is acljusted properly
":
'
:,. (seeabove);
'
"
"!" V_tiihengine off turn idle mixture valve in(clockwise)
i_ : (_losing it finger tight and then turn out (counterclock-
' wise)1
ft_llturn.
.
'
!
FINAL SETTING -
Star(en ine and all0wto,warm for five minutes, Make
.
.
ine running and shift/tactic n
screw, turn idle
until en-
:
gine begins to die and then turn out (counter
until engine runs rough_Turn valve to a point mi_lway
between those two positions. Release throttle lever°
IDLE MIXTURE
VALVE
FIG. 34
25

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