TM 10-4930-351-14
0109 00
INSTALL GOVERNOR ASSEMBLY AND SPEED CONTROL (Refer to Figures 10 and 11)
INITIAL SET-UP:
Tools:
Materials/Parts Required
Caliper, Vernier (WP 0113 00, Item 3)
Rubber Band
Socket, Socket Wrench, 10 mm
(WP 0113 00, Item 3)
Clip, Retaining (WP 00117 00, Item 36)
Combination, 19 mm
O-Ring (WP 0117 00, Item 52)
(WP 0113 00, Item 3)
Handle, Socket Wrench, Ratchet, 3/8" Drive
Equipment Condition:
(WP 0113 00, Item 3)
Camshaft installed
Key, Socket Head Screw, 8 mm
(WP 0113 00, Item 3)
Screwdriver, Flat Blade (1/8 x 6 in.
(WP 0113 00, Item 3)
Refer to Figure 10.
NOTE
The adjustments described in the following steps are critical to proper operation of the engine. Improper
adjustment will cause RPM fluctuation, hard starting and loss of engine power.
Installation of the governor assembly and speed control involves shifting the camshaft in and out of the
crankcase to provide access for installation of governor assembly and speed control.
1.
Using a vernier caliper, adjust governor rod (1) until the distance (A) between governor rod bearing holes is 1.476 in.
(36.5 mm) center to center, 1 turn.
2.
Assemble the two pieces (2 and 3) of the governor assembly (4), using a rubber band to temporarily hold those two
pieces of the governor assembly together. Attach governor rod (1) to governor assembly (4).
NOTE
For ease of installation of the governor assembly, as necessary, partially remove the camshaft to gain
access during installation of the governor assembly.
3.
Lift the camshaft enough to insert and align the governor assembly in the crankcase. Insert the governor journal (5)
through external crankcase hole (6), through the holes (7) in the governor assembly (4) and into mounting hole on
opposite side of crankcase. Press governor journal (5) into position. Ensure governor is free to move without binding.
Remove rubber band.
4.
Install washer (8) and governor plug (9) over the governor journal (5).
5.
Install O-ring (10) on inside speed control lever (11).
6.
Attach governor spring (12) to inside engine speed control lever (11).
NOTE
It may be necessary to rotate camshaft to allow for installation of speed control lever. After completion of
speed control lever installation, ensure timing marks on camshaft gear are on either side of timing mark on
crankshaft gear (figure 9).
7.
Install inside speed control lever (11) from inside crankcase. On outside of crankcase install retaining clip (13) on inside
speed control lever (11).
0109 00-13
