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TO ADJUST CARBURETOR
The carburetor has been preset at the fac-
tory and adjjustme_tshould not be neces-
sary.--However,minor adjustment 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 the adjusting needles
in (clockwise) decreases the supply of fuel
to the engine giving a leaner fueVair mix-
ture. Turning the adjusting needles out
(counterclockwise) increases the supply of
fuelto the engine giving a richer fuel/air
mFxt_Jre_
IMPORTANT: Damage to the needles and
the seats in carburetor may result if nee-
dle is turned in too tight.
NOTE:-Tri_'carbO_etOr 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.
• B_--SrJ-reT-y_:d-have
a clean air filter and
the throttle control cable is adjusted
properly (see above).
- Start engine and allow to warm for five
minutes. Make adjustments with engine
running and shift/motion control lever in
neutral (N) position.
• Idle speed settina - With throttle contr.ol
lever in slow position, engine should
idle at 1750 RPM. If engine idles too
slow or fast, tum idle speed adjusting
screw in or out until correct idle is at- '
- tained.
• Idle fuel needle settina - With throttle
control lever in slow position, turn idle
fuel adjustment needle in (clockwise)
until engine begins to-die and then tum
out (counterclockwise) until engine runs
rough. Turn needle to a point midway
between those _.two positions.
• Recheck idle sp_ed. Readjust if neces:
sary.
ACCELERA'I;ION
TEST-
• Move throttle control lever from slow to
fast position. If engine hes'dates or dies,
turn idle fuel adjusting needle out (coun-
terclockwise) 1/8 tum. Repeat 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 is factory set for
proper engine speed. Overspeeding the
engine above the factory high speed set-
ting can be dangerous. If you think the
engine-governed
high speed needs
adjusting, contact your nearest AUTHO-
RIZED service center, which has proper
equipment and experience to make any
necessary adjustments.
Idle Speed
Adjusting
Screw
Idle Fuel
Needle
28
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