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SERVICE AND ADJUS
CAUTION: Theoperator presence con-
_
trol bar must pivot freelyto
permit blade
brake engagement when control bar is
released°
Do not over tighten the
fasteners
holding the controls to the
upper handle.
To change from medium low to high position only the
upper handle section will have to be turned over (See
Fig_16A).
To change from medium low to 10wposition,only the
lower handle section will have to be tgrned over (See
Fig_16B).
SQUEEZE
\\\\
TO REMOVE
HAIRPIN CLIP
FIG, 17
LOWER HANDLE
HANDLE
BRACKET
ENGINE
ENGINE SPEED
Your engine speed has been factory set, Do not attempt
toincrease engine speed or'it may result in personal injury_
Ifyou believe thatthe en gine_is runningtoofast ortoo slow,
take your lawn mower to an authorized service center for
repair and adjustmenL
TO ADJUST CARBURETOR
(See Fig, 18)
Minor carburetor'adjustments may be requiredto compen-
sate for differences in fuel, temperature, altitude or load.
The air cleaner and air' cleaner cover must be assembled
to carburetor when running°
INITIAL ADJUSTMENT-
With the engine not running, gently turn idle mixture screw
clockwise until it just closes° Screw may be damaged by
turning it in too far,
Next open the screw one turn counter-clockwise.
This
initial adjustment will permit the engine to be started and
warmed up (approximately 5 minutes) prior to final adjust-
menL
NOTE: Do not adjust top no load adjusting screw. It was
pre-set at the factory_
FINAL ADJUSTMENT-
Place engine speed control lever in idle or slow 0 position_
Adjust idle RPM by turning idle speed adjusting screw to
obtain 1700 RPM_ Next, turn idle mixture screw in (clock-
wise - lean mixture) until engine just starts to slow. Then
turn idle mixture screw out (counter-clockwise - rich mix-
ture) until engine runs unevenly_ Now turn idle mixture
screw midway between rich and lean.
Engine should
accelerate smoothly,
if engine does not accelerate prop-
erly, the carburetorshould be readjusted, usuallyto a richer
mixture, by turning the idle mixture screw counter-clock-
wise 1/8 turn more.
IMPORTANT:
NEVER TAMPER WITH 'THE ENGINE
GOVERNOR, WHICH IS F.ACTORY.SET FOEtI_d_I_PER
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, WHICH HAS
PROPER EQUIPMENT AND EXPERIENCE TO MAKE ANY
NECESSARY ADJUSTMENTS..
TOP NO
LOAD
SCREW
IDLE SPEED
ADJUSTING
SCREW
IDLE MIXTURE
SCREW
FIG. 18
16
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