Adjust Valve Clearance; Top No-Load Adjustment - Briggs & Stratton 110000 Service, Troubleshooting, And Repair Manual

Top No-Load Adjustment

1. Start engine and run at idle speed until it
reaches operating temperature.
2. Place throttle lever (F, Figure 1-9) in FAST
position.
3. Using Tachometer #19200 or #19389, and
Tang Bender #19229 or #19352, bend
spring tang (G) to obtain correct top no-
1
load RPM.
NOTE: Correct top no-load RPM for each model-
type-trim can be found in the engine replacement
data on Briggs & Stratton websites.
1
Figure 1 - 9

Adjust Valve Clearance

NOTE: Check valve clearance while the engine
is cold.
1. Insert a narrow gauge such as a
screwdriver, rod, or pencil into the spark
plug hole until it touches the piston. Cut
away view is shown.
2. Observe the movement of the gauge and
turn the flywheel clockwise past top dead
center on the compression stroke until the
piston has moved down the bore 0.25 in.
(6.4 mm).
3. Valve clearance is checked by placing a
feeler gauge (H,Figure 1-10) between the
rocker arm adjusting screw (J) and the
valve cap (K).
12
4. Using an Allen wrench, loosen the head
set screw. Turn the adjusting nut (L) in or
out until the correct clearance is obtained
between the valve stem cap and rocker
arm.
5. Tighten the allen head set screw to lock
the setting in. Recheck clearance and
readjust as necessary.
Figure 1 - 10