Specifications

30
14
15
INCREASE
DECREASE
BEND AREA
HIGH SPEED
ADJUSTMENT TAB
.040 - .070 (1.016 - 1.778 mm)
GAP LOCATION
CHOKE ADJUSTING
TAB
CONTROL
LEVER
HIGH SPEED
PIN POSITION
GOVERNED
IDLE ADJUSTING
SCREW
ADJUSTING RPM ON MEDIUM FRAME
VERTICAL SPEED CONTROL
This speed control is adjusted by aligning the slot in the
speed control lever with the alignment hole on the mounting
bracket. Place a pin through the two holes, place the
equipment throttle control to the wide open position, hook
the bowden cable end in the control as shown, and tighten
the cable housing clamp. In this position, the gap of .040"
- .070" (1.016 - 1.778 mm) should exist at the gap location
as illustrated. This will assure that the carburetor will go
into full choke when the control is placed in the start
position.
ADJUSTING GOVERNED/NON-GOVERNED
With the engine running at its lowest speed, set the
governed idle at the designated RPM by adjusting the
governed idle screw or bending the idle tab. Next set the
non-governed idle by pushing the bottom of the governor
lever away from the control brackets so the throttle lever
contacts the idle speed crack screw (on the carburetor).
Hold the lever in this position and turn the crack screw to
600 RPM below the governed idle speed. This setting
prevents the throttle plate from closing off when going
from high speed RPM to low speed RPM. If improperly
adjusted, the engine could experience an over lean
condition.
The idle speed is adjusted by turning the idle speed screw
clockwise to increase engine R.P.M. and counter-
clockwise to decrease R.P.M. Use tool part # 670326 to
adjust the high speed engine R.P.M. Place the slotted
end of the tool onto the adjustment tab and bend the tab
to the left (toward the spark plug end) to increase engine
R.P.M. (diag. 14).
NOTE: Some engines use nylon bushings on the throttle
and choke linkage hook-up points to extend the life of
the linkage and to enhance the stability of the governor
system. Make sure they are in good condition and in place.
ADJUSTING RPM ON MEDIUM FRAME
VERTICAL
(up/down speed control)
To adjust the high speed RPM on Medium Frame Vertical
engines, move the control lever to the high speed pin
position (align high speed pin holes in the speed control
bracket). Place the slot on the straight end of tool (number
670326) onto the high speed adjustment tab as pictured.
Rotate the bent end of the tool counterclockwise to
increase RPM and clockwise to decrease RPM. (diag.
15).
HIGH SPEED
ADJUSTMENT TAB
INCREASE
DECREASE
Þ
HIGH SPEED
PIN POSITION
GAP OF
.040 - .070
(1.016 - 1.778 mm)
GOVERNED
IDLE SPEED SCREW
Þ
TOOL
670326
TOOL
670326