Service and adjustments, Engine – Poulan 139700 User Manual
Page 24
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SERVICE AND ADJUSTMENTS
TO REMOVE HOOD AND GRILL ASSEMBLY
(See Fig. 38)
® Lift hood. Disconnect headlight wire connection.
® Remove wing nuts on inside of side panels.
® Pivot hood and side panel forward and lift off tractor.
* To replace, reverse above procedure.
ENGINE
TO ADJUST THROTTLE CONTROL CABLE
(See Fig. 39)
The throttle 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 throttle control lever to
“FAST” position.
® Check that swivel is against side of quarter circle, ¡ f i t
is not, loosen cable clamp screw and pull cable back
until swivel is against quarter circle. Tighten cable
clamp screw securely.
TO ADJUST CHOKE CONTROL (See Fig. 40)
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 dash panel) to full “CHOKE” position.
Remove air cleaner cover, filter and spitback plate to
expose carburetor choke (see “AIR FILTER” in Cus
tomer Responsibilities section).
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
curely.
Reassemble air cleaner.
TO ADJUST CARBURETOR
The carburetor has been present at the factory and adjust
ment should not be necessary. However, minor adjust
ment may be required to compensate for differences in fuel,
temperature, altitude or load. If the carburetor does not
need adjustment, see the engine manual packed with your
tractor.
High speed stop is factory adjusted. Do not adjust-damage
may result.
IMPORTANT; NEVER TAMPER WITH THE ENGINE
GOVERNOR, WHICH IS FACTORY SET FOR PROPER
ENGINESPEED. OVERSPEEDING THE ENGINE ABOVE
THE
FACTORY
HIGH
SPEED
SETTING
CAN
BE
DANGEROUS. IF YOU THINKTHE ENGINE-GOVERNED
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
NEAREST AUTHORIZED SERVICE CENTER, WHICH HAS
PROPER EQUIPMENT AND EXPERIENCE TO MAKE ANY
NECESSARY ADJUSTMENTS.
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