shaft by turning the sensitivity screw
binding and for excessive wear at
inward.
connecting points.
(8)
Recheck the speed adjustment after a
(2)
Adjust or replace governor parts as
sensitivity adjustment.
Increasing
required. Any looseness or wear may
sensitivity will cause a slight decrease
cause sluggish or erratic governor
in speed, and will require a slight
operation.
increase in the governor spring
(3)
Clean all governor parts using an
tension.
approved cleaning solvent.
(9)
Adjust the throttle lever stop screw (9,
c.
Installation.
7) to 1/32 inch from the
carburetor bowl when the engine is
(1)
Install the throttle bracket (14, fig. 7)
operating at no-load.
on the governor linkage (10, fig. 22).
113. Fuel Tank, Lines and Fittings
(2)
Connect the governor linkage (10) to
the governor arm (11) and to the
a.
Removal.
carburetor (7, fig. 7).
(1)
Disconnect the flexible fuel line (1, fig.
(3)
Connect the governor spring (15, fig.
23) at the fuel pump filter (17). The
22) to the governor arm by installing
fuel line has a swivel fitting.
the sensitivity screw (4).
(2)
Disconnect the flexible line at the
(4)
Install the speed adjusting nut (3, fig.
heater fuel pump.
21) to the speed stud bracket.
(3)
Disconnect and remove the fuel lines
d.
Adjustment.
(2 and 18) from the top of the fuel
tank.
(1)
Before making governor adjustment,
run the engine about 15 minutes.
(4)
Remove four screws (13) from the
fuel tank mounting bracket (15).
(2)
Adjust the carburetor main jet (par.
(5)
Remove fuel tank (16) from mounting
bracket (15).
(3)
Adjust the length of the governor
linkage (10, fig. 22) with the engine
(6)
Remove the fuel tank cap (20) and
stopped and tension on the governor
chain from the filler pipe (19).
spring (15), the stop screw (9, fig. 7)
(7)
Remove the filler pipe (19) and the
on the carburetor throttle shaft is 1/8
fuel drain plug (14) from fuel tank.
inch from the stop pad of the
carburetor body.
b.
Cleaning, Inspection, and Repair.
(4)
Check the engine speed with a
(1)
Replace the fuel tank, if badly dented,
The no-load engine
punctured, or otherwise damaged.
speed should be 2,800 rpm,
(2)
Clean all parts with an approved
maximum rated speed is 3,600 rpm at
cleaning solvent.
full load.
(3)
Replace the flexible fuel lines and
(5)
Turn the speed adjusting nut (3, fig.
fittings, if leaking or damaged.
21) in to increase the speed or out to
(4)
Replace filler cap and chain if
decrease the speed. Be sure the
damaged in any way to hamper
knife edges of the nut fit into the
proper operation.
groove in the governor spring bracket.
(5)
Replace fuel tank
drain
plug
if
(6)
To increase sensitivity (reduce rpm
damaged.
drop between no-load and full-load)
move the speed spring nearer to the
c.
Installation.
governor shaft by turning the
(1)
Install the filler pipe (19), and fuel
sensitivity screw (4, fig. 22) outward.
drain plug (14) on the fuel tank (16).
(7)
To decrease sensitivity move the
(2)
Install the fuel tank cap (20) and chain
speeds spring away from the governor
on the filler pipe (19).
55