Replace Nylon Throttle Shaft Bushings; Replace Steel Throttle Shaft Bushings - Briggs & Stratton Twin Cylinder L-Head Repair Manual

Two style throttle shaft bushings are used on opposed
twin cylinder carburetors, Fig. 16.
1. A replaceable split nylon bushing.
2. A replaceable steel bushing.
The bushings are not interchangeable.

Replace Nylon Throttle Shaft Bushings

1. Remove nylon bushing from throttle lever side of
carburetor.
2. Drive out throttle shaft plug with long 3/16" (5 mm)
punch.
a. Save plug.
3. Install new bushings with flange side out, Fig. 17.
4. Re-install throttle shaft plug with 1/4" (6 mm)
punch.
5. Stake in three places around plug with 1/8" (3 mm)
punch, Fig. 18.
6. Apply sealant over plug to prevent air leaks.

Replace Steel Throttle Shaft Bushings

1. Drive out throttle shaft plug with long 3/16" (5 mm)
punch.
a. Save plug.
2. Thread self threading screw #93029 from #19165
flywheel puller into bushing 2-3 turns, then remove
it, Fig. 19.
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3
Fig. 16 – Throttle Shaft Bushings
Fig. 17 – Replace Nylon Bushing
NYLON
BUSHING
STEEL
BUSHING
STAKE WITH
PUNCH
Fig. 18 – Install Plug
SELF
THREADING
SCREW
#93029
Fig. 19 – Thread Bushing
FLANGE
SIDE
OUT