Briggs & Stratton Vanguard 10V300, Repair Manual

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12
NOTE: Rewind starter may be installed in the 2
o'clock, 8 o'clock, 10 o'clock, or 12 o'clock positions.
11. Loosely install three hex flange screws to fasten
rewind starter to blower housing.
NOTE: To ensure that pawls evenly engage flywheel
starter cup, pull starter rope, tighten hex flange
screws until snug, and then release starter rope.
12. Alternately tighten three hex flange screws to 25-35
lb-in (2.8-4 N-m).
13. Install air cleaner base onto carburetor mounting
studs.
14. Install two hex flange nuts onto carburetor mounting
studs. Tighten nuts to 30-50 lb-in (3.4-5.7 N-m).
15. Install trim panel onto inside carburetor mounting
stud. Start hex flange nut onto stud.
16. Install hex flange screw to fasten trim panel and air
cleaner base to control bracket. Tighten screw to
40-60 lb-in (4.5-6.8 N-m).
17. Tighten hex flange nut on inside carburetor mounting
stud to 25-35 lb-in (2.8-4 N-m).
18. Install breather hose from valve cover to port on air
cleaner base.
19. Install spark plug wire onto spark plug terminal.
Clean/Inspect Muffler and Spark Arrester
NOTE: Avoid using high pressure compressed air, which
can force dirt and debris deeper into engine cavities and
crevices. Do not use a pressurized water spray as water
intrusion can contaminate both oil and fuel systems and
lead to corrosion.
1. Remove spark plug wire from spark plug terminal.
Secure spark plug wire to prevent contact with spark
plug terminal.
2. Inspect muffler deflector/spark arrester for dirt, debris,
and carbon buildup. Proceed as follows:
A. Note orientation of muffler deflector before
removal.
B. See Figure 5. If stamped guard ( A ), remove three
screws ( B ) to release muffler deflector ( C ) and
spark arrester ( D ).
C. If wire guard ( E ), remove single screw ( F ) to
release muffler deflector/spark arrester ( G ).
D. Clean spark arrester screen with a stiff bristle
brush. If carbon buildup is present, soak or spray
with Carburetor Cleaner (Part No.'s 100041 or
100042). Blow dry from the inside-out with low
pressure compressed air.
NOTE: Exercise care to avoid bending or
puncturing screen. Replace assembly if screen
cannot be adequately cleaned or if any damage
is observed.
5
3. Remove three hex flange screws with lock washers
( H ) to release wire guard or stamped guard from
muffler ( I ).
4. Clean area around and behind muffler. Proceed as
follows:
A. Remove all loose debris by hand.
B. Remove dust and dirt with a soft bristle brush and
a portable hand held vacuum.
C. Gently scrape away stubborn accumulations of
dirt and other deposits using a plastic putty knife
or stiff bristle brush.
D. Apply a light solvent to bristle brush to loosen and
remove grit and oily residue, if necessary.
5. Inspect muffler for holes, split seams, cracked welds,
loose internal parts, corrosion, and other damage.
Replace as necessary.
6. Inspect muffler manifold and mounting flange for
cracked welds, breakage, and other damage.
Replace as necessary.
7. Verify that two hex nuts ( J ) on exhaust flange studs
are tightened to 80-110 lb-in (9-12.4 N-m).
8. Install three hex flange screws with lock washers
to fasten wire guard or stamped guard to muffler.
Alternately tighten screws to 80-110 lb-in (9-12.4 N-
m).
9. Install muffler deflector/spark arrester as follows:
A. Orient muffler deflector as noted before removal.
NOTE: Muffler deflector is installed in either the 9
o'clock or the optional 6 o'clock position.
Not for
Reproduction