Briggs & Stratton Twin Cylinder L-Head Repair Manual page 67

Constant Speed – Pre-Twin II
(Type Nos. Below 1100)
1. Loosen constant speed locking screw and washer
and move control lever until a 1/8" (3 mm) rod can
be inserted through two (2) holes in governor
control plate, Fig. 37.
2. Bend governed idle tang to obtain 1300 RPM.
3. Remove rod.
4. Refer to Service Engine Sales Manual Microfiche,
MS-6225 or the Service Sales Manual, MS-4052
for Top-No-Load RPM by engine model and type
number.
5. Check governor spring location for proper hole
location by RPM, Fig. 38.
6. Move lever to obtain specified Top-No-Load RPM.
7. Tighten lock screw and washer, Fig. 39.
8. Bend tang until it touches speed control lever.
Fixed Speed Adjustable – Pre-Twin II
(Type Nos. Below 1100)
1. Turn speed regulator nut counterclockwise until a
1/8" (3 mm) rod can be inserted through two (2)
holes in governor control plate, Fig. 40.
2. Bend governed idle tang to obtain 1300 RPM.
3. Remove rod.
4. Refer to Service Engine Sales Manual Microfiche,
MS-6225 or the Service Sales Manual, MS-4052
for Top-No-Load RPM by engine model and type
number.
5. Check governor spring location for proper hole
location by RPM, Fig. 38.
12
4
TANG BENDER
INCREASE
Fig. 37 – Adjust Governed Idle
GOVERNOR
LEVER
3200 TO 3300 RPM
2700 TO 3100 RPM
Fig. 38 – Governor Spring Position
Fig. 39 – Adjust Top-No-Load
TANG BENDER
INCREASE
Fig. 40 – Adjust Governed Idle
TANG
1/8" (3 mm) ROD
DECREASE
3900 TO 4000 RPM
3700 TO 3800 RPM
3400 TO 3600 RPM
BEND TANG
TANG
1/8" (3 mm) ROD
DECREASE
LOCKING
SCREW &
WASHER