272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

5. Turn fixed speed adjustable control nut (6)
clockwise (8) to increase or counter-clockwise
(7) to decrease engine speed until desired Top
No-Load RPM is obtained, Fig. 37.
Fig. 37
Fixed Speed Adjustable – Generators
No governed idle spring is used with this system. No
throttle restrictor adjustment is necessary. The
primary governor spring (1) is installed in #2 hole on
governor lever (5). A secondary governor spring (3)
is installed with loop (4) over the governor lever tab
(4), and the rear loop facing (2) UP as shown in
Fig. 38.
Adjust Secondary Governor Spring
1. Disengage the adjustable fixed speed control
nut (Inset, Fig. 40).
2. Loosen and remove fixed speed adjustable
control nut, spring and retainer.
3. Rotate governor control swivel (1) counterclockwise
to end of travel, Fig. 39.
4. Install Adjustment Gauge #19385 (3), with notch
over end of governor lever and flat end of tool
against governor control bracket as shown in
Fig. 39.
5. Hold gauge in position and bend tab (5) with Tang
Bender #19352 (4) so that all slack is removed
from secondary governor spring (2) between its
two anchor points, Fig. 39. DO NOT STRETCH
SPRING.
6. Remove adjustment gauge.
NOTE: Secondary governor spring must be
adjusted BEFORE the engine is started.
Perform adjustment in the sequence
shown.
Fig. 39
Start engine. Run for approximately 5 minutes to
allow engine to warm up.
7. With engine running, pull control rod (7) out until
swivel is against stop. Hold in this position,
Fig. 40.
Fig. 38
8. Use tang bender (4) to bend tang (6). Adjust to
Top No-Load RPM for the type of generator
listed in Table 1.
9. Re-install control nut, spring and retainer. Turn
nut clockwise until threads on control rod are
visible from end of nut, inset Fig. 40.
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