Craftsman 917.270711 owner manual astpos, Toadjust .Iiirottlecontrol Cable

TOADJUST .'II'IROTTLECONTROL

CABLE --.

The tl_o_ttle _controlhas been preset at the factory and adjustment should not be nec- essary. Check adjustment as descn'bed below before loosening cable, if adjust- ment is necessary, proceed as follows:

•With engine not running, move throttle

-control lever from slow to cho!_e posi-

1ion. Slowly move lever from'choke to

astpos, .

•Check that holes "A" in governor control lever and hole in govemor plate line-up. ff _oles_A " are not aligned, loosen clamp screw and move throttle cable until holes are alii)ned. Tighten clamp screw securely.

___Go_vemor.... Governor

Control Lever Control Plate

\

	Clamp		Throttle
Holes "A"	Screw	:	Cable

TO ADJUST CARBURETOR

NOTE: The carburetor on this engine is low emission. It is equipped with an idle fuel adjusting needle)with a limiter cap, which allows some adjustment within the limits allowed by the cap. Do not attempt to remove the limiter cap. The limiter cap cannot be removed without breaking the adjusting needle.

_l'he carburetor has been'preset at the fac- tory and adjustment should not be neces- sary. However, minor adj;_rstment may be required to compensate for differences in

-fuel,'temperature, altitude or load. If the

carburetor does need adjustment, proceed as follows:

In general, turning idle mixture valve in !cloc kw_ise) decreases the supply of fuel to

.,me engine giving a leaner fuel/air mixture.

. Tuming the idle mixture valve out " .

-(cou_.."terclockwisa)"mcreases the Supply of

luel.tothe engine givi.nga richerfuel/air

rnixture_. -.-----_-

PREMMINARY SETTING -

o. Air oleaner assembly must be essem-

bled to the carburetor when making car- buretor adjustments.

•Be sure the throttle control cable is adjusted properly (see above).

FINAL SETTING -

•Start engine and allow to warm for five minutes. Make final adjustments with engine running and shift/motion control lever in neutral (14)position.

•Move throttle control lever to slow posi- tion. With finger, rotate and hold throttle lever against idle speed screw. Turn idle speed screw to attain 1750 RPM.

•While still holding throttle lever against

idle speed screw, turn idle mixture valve full travel clockwise then counterclock-

wise until engine runs rough. Turn valve to a point midway between those two

positions. Release throttle lever.

ACCELERATION TEST -

•Move throttle control lever from slow to fast position. If engine hesitates or dies, turn idle mixture valve out (counter- clockwise) 1/8 tum. Repeat test and

continue to adjust, if necessary, until engine accelerates smoothly.

High speed stop is factory adjusted; Do not adjust---d_,mage may resulL IMPORTANT: Never tamper with the engine governor, which is factory set for proper enginespeed, overspeeding the engine above the factory high speed set- ting can be dangerous, if you think the engine<3ovemed high speed needs adjusting, contact.your nearest authorized serviceconter, which has proper equip-

.ment to make any necessary adjusbn, ents.

Idle Speed Screw'-Tl_rottle Lever

IM .P.P.P.P.P.P.DamageP.P.P TAItor:the needle valve		Valve W'_h.
afid _	sea_ in carburetor may result if	_r
screw	is turned in too tight.	27