Manual

Adjustments
Control adjustments
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To prevent accidental starting,
remove spark plug wire from spark ] _ \--x_ £ I
plug and disconnect battery at nega- J "rl I_"_ ° I
live terminal, if equipped, when
adjusting controls.
Remote choke control:
Move choke control to CHOKE or START position. Choke
valve should be closed. To assure choke valve is closed, loos-
en casing clamp screw and pull casing, wire and choke lever
in direction of arrow to end of travel. With choke control in
CHOKE or START position, tighten casing clamp screw.
im
Choke control adjustment
To adjust throttle control:
With throttle control in FAST position, hole in governor control
lever (located just behind governor control plate) must align
with hole in governor control plate, as illustrated below. If it
does not, loosen casing clamp screw and then move governor
control rack until it does. Tighten casing clamp screw.
Check stop switch
Move throttle control to STOP position, if equipped. Governor
control lever must make good contact with stop switch.
Check operation of controls. Readjust if necessary.
FAST
SLeW
HOLE IN GOVERNOR
CONTROL
GOVERNOR STOP LEVER
CONTROL SWITCH
PLATE
GOVERNOR CASING
CONTROL CLAMP
RACK SCREW
Throttle control adjustment
Carburetor adjustments
The manufacturer ol the equipment on which this
engine is installed specifies top speed at which the
engine will be operated. DO NOT EXCEED thisspeed.
Differences in fuel, temperature, altitude or load may require
minor carburetor adjustment. Air cleaner and air cleaner cover
must be assembled to carburetor before starting engine.
The carburetor on this engine is low emission. It is equipped
with an idle mixture valve with a limiter (see inset), which allows
some adjustment, and an idle speed adjustment screw.
Adjustments
Start engine and warm up approximately 5 minutes before
adjusting. With engine running, place throttle control in SLOW
position. Rotate carburetor throttle lever against the idle
speed screw and hold it. Turn idle speed screwto obtain 1750
rpm.
Rotate idle mixture valve full travel clockwise and then counter-
clockwise. Finally, positionidle mixture valve in middle of trav-
el. Check idle speed and re-adjust to 1750 rpm, if necessary.
Move throttle control to FAST position. Engine should
accelerate smoothly. If it does not, adjust idle mixture valve
counterclockwise 1/8 turn.
CARBURETOR
THROTTLE
LEVER
IDLE SPEED
SCREW
IDLE MIXTURE
VALVE
WITH LIMITER
@
Carburetor adjustments
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