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Figure 6
Figure 7
Figure 8
Governed RPM Limits
To comply with specified top governed speed
limits, Briggs & Stratton supplies engines with an
adjustable top speed limit, which the equipment
manufacturers set to their own specifications.
Top governed speed should be checked with a
tachometer when the engine is operating on a
completely assembled unit. The equipment
should be operated under no load when making
these checks.
If a governor spring must be replaced, consult
the appropriate Illustrated Parts List for the
correct part number.
After a new governor spring is installed, check
the engine top governed speed with an accurate
tachometer, as noted above, and adjust as
required.
Governor Service
Horizontal Models 110000, 120000,
150000, 200000, 210000
The mechanical governor is part of the
crankcase cover. The governor gear
(A, Figure 9) is driven by the crankshaft timing
gear (B) through an idler gear (C). The governor
crank (D) is mounted in the cylinder assembly.
NOTE: Stamped side of idler gear faces out.
Figure 9
Disassemble
1. Drain oil from engine. Remove burrs and
clean crankshaft, then remove crankcase
cover. Set aside.
2. Loosen governor lever nut (A, Figure 10).
3. Slide lever off governor crank (B) and
disconnect from governor link (C).
4. Remove push nut and washer (D) from
governor crank. Remove any burrs from
governor crank, and then remove crank
from inside cylinder.