Craftsman EZ3 917.258990 Owner's Manual download pdf (Page 27)

TO ADJUST CHOKE CONTROL

(See Figs. 37 and 38)

The choke control has been preset at the factory and

adjustment should not be necessary° check adjustment as

described below before loosening cable, If adjustment is

necessary, proceed as follows: -

. With engine not running, move choke control (located

on clash panel) to full choke (N) position,

o Remove air cleaner cover, filter and cartridge plate to

expose carburetor choke (See "AfR FILTER" in the

Customer Responsibilities section of this manual),,

• Choke should be closed. If it is not, loosen casing

clamp screw and move choke cable until choke is

completely closed, Tighten casing clamp screw se-

curelyr

', Reassemble air cleaner.

CLOSED FOR

FULL

FIG. 38

TO ADJUST CARBURETOR (See Fig, 37)

The carburetor has been present at the factory and adjust-

ment should not be necessary_ However, minor adjustment

may be required to compensate for differences in fuel

temperature, altitude or Ioad_ If the carburetor does need

adjustment, proceed as follows:

In general, turning the adjusting needles in (clockwise)

decreases the supply of fuel to the engine giving a {eaner

fue!!air mixture Turning the adjusting need{es out (coun-

terclockwise) increases the supply of fuel to the engine

giving a richer fuel/air mixture.

IMPORTANT: DAMAGE TO THE NEEDLES AND THE

SEATS tN CARBURETOR MAY RESULT IF SCREW IS

TURNED tN TOO TIGHT

PRELIMINARY SETTING -

- Be sure you have a clean air filter, and the throttle

control cable is adjusted properly (see "TO ADJUST

THROTTLE CONTROL CABLE in the Service and

Adjustments section of this manual)

. With engine off turn idle fuel adjusting needle in (clock-

wise) closing itfinger tight and then turn out (counter-

clockwise) ! turn

FINAL SETTING -

o Start engine and allow towarm for five minutes Make

final adjustments with engine running and shift/motion

control lever in neutral (N) position

" The high idle is set at the factory and cannot be

adjusted.

= Idte speed setting - With throttle control lever in slow

(.,_) position, engine should idle at 1200 RPM, If

engine idles too slow or fast, turn idle speed adjusting

screw in or out unti_ correct idle is attained.

• Idle fuel needle setting - With throttle control lever in

slow (._,) position, turn idie fuel adjusting needle in

(clockwise) L,ntil engine speed decreases and then

turn out (counterclockwise) approximately 3/4 turn to

obtain the best low speed performance

o Recheck idle speed. Readjust if necessary,

ACCELERATION TEST -

• Move throttle control lever from slow (_) to fast (,_)

position, If engine hesitates or dies, turn idle fuel

adjusting needle out (counterclockwise) 1/8 turn, Re-

peat test and continue to adjust, if necessary, until

engine accelerates smoothly

High speed stop is factory adjusted, Do not adjust-damage

may result

IMPORTANT: NEVER TAMPER WITH THE ENGINE

GOVERNOR, WHICH tS FACTORY SET FOR PROPER

ENGINE SPEED OVERSPEEDING THE ENGINE ABOVE

THE FACTORY HiGH SPEED SETTING CAN BE

DANGEROUS IF YOU THINK THE ENGINE-GOVERNED

HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR

NEAREST AUTHORIZED SERVICE CENTER/

DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND

EXPERIENCE TO MAKE ANY NECESSARY

ADJUSTMENTS

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Craftsman EZ3 917.258990 Owner's Manual Page 27

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