Tune-Up Specifications - Briggs & Stratton 120000 Operating And Maintenance Instruction Manual

Rectangular Dual Element Air Cleaner
1. Loosen screw and tilt cover down. Remove precieaner ( i l equipped) and
2. Alter Scrvciiq pie-ceancr and caririoge, place pre cleaner. I I eq~:ppea
3. lrislal p:e-c eaner ano canlioqe assembly n cover.
insert tabs on cover into slot& in bottom of base.
4.
Oval Dual Element Air Cleaner
1. Remove knob and cover.
2. After cleaning, reassemble precleaner on cartridge. Push air cleaner firmly
down on stud to seat in base.
3.
Push cover squarely onto base. Tighten knob securely.
Oil Foam Air Cleaner
To service foam element wash in liquid detergent and water. Squeeze dry in a
€9,
clean cloth. Saturate in engine oil. Squeeze in clean, absorbent cloth to remove
ALL EXCESS oil.
1. Lwsen screw and tilt cover down. Remove bracket
cover.
2. Clean 013~664, m e r an0 oase.
3. Insk orackd and loa e ement In cover.
4 Insert labs on cover inlo slots in oonom of oase.
5. Tilt cover up and fasten securely with screw.
SPARK PLUG MAINTENANCE
Cleanheplace spark plug every 100 hours or every season, whichever occurs
first. Spark plug wrench is available from any Authorized Briggs
Note: In some areas, local law requires using a resistor spark piug to suppress
ignition signals. If this engine wasoriginally equipped with resistor spark plug, use
same type of spark plug for replacement.
Spark plug gap €9 should be 0.76 mm (0.030 in)
WARN
DO NOTattempt to start engine with spark plug removed. Fuel can ignite
and cause afire or explosion. If you need to check for spark, use only Briggs
KEEPING ENGINE CLEAN
Periodically remove grass and chaff build-up from engine. Clean finger guard. Do
not spray engine with water to clean because water could contaminatefuel.
Clean with a brush or compressed air.
If muffler is equipped with spark arrester screen O, remove spark arrester screen
for cleaning and inspection every 50 hours or every season. Replace if damaged.
To assure smooth operation, keep governor linkage, springs and controls
of debris.
Clean cooling system. Chaff or debris may clog engine's air cooling system,
especially after prolonged operation. Remove blower housing and clean as
shown O.
STORAGE
Engines stored over 30 days need to be protected or drained of fuel to prevent
For engine protection, we recommend use of Briggs
Note: Hstabiiizer is not used or if engine is operating on gasoline containing alcohol,
1. Change oil. See Oil service.
2. Remove soark olua and wur about 15 ml
3 Clean cnafl ano oeons from cy noer and cylinder nead
and behind muHter.
4. When removing the unit tmm storage, only use fresh gasoline. Perfom
operation checks, see maintenance schedule, before starting engine.
air deanw d stud
and foam dement from
I N G
I
under lnqer g~iard
Store in a clean, dry m a . DO NOT store near a stove, furnace or water
heater which uses a pilot light or any device that can create a spark.
SERVICE
See an A~tnsrized Br~ggs
Need ~ssisiance? GO to tne websile or &I., 1-800-233-3723
Canada) to lear a
Partial List of Genuine Briggs & Stratton Parts
Oil (20 o r )
(48
Oil pump kit (uses standard electric drill
to remove oil from engine quickly)
Fuel stabilizer ( I oz.,
30
Fuel filter
Flat air cleaner caflridge
flat air cleanerpwleaner
Oval air deanw callridge (Model 11,12)
Oval air deaner pre-cleaner (Model 11,12)
Oval air cleaner cartridge (Model 20,21)
Resistor spark plug
Standard spark plug
Long life platlnum spark plug
(used on most OHV engines)
Spark tester
Spark plug wrench
our web site at
Use

TUNE-UP SPECIFICATIONS

Model 120000
Bore
Stroke
Displacement.
Model 1500W
Bore..
free
Displacement
Model 200000
Bore.
Stroke
Displacement
Model 210000
Bore..
............................................
Stroke
Displacement..
Spark plug gap
Models l Z OOOOI 1SOWO
...........................
Armature air
gap
.......................................
Spark plug gap
...............................
Intake..
................................
Exhaust
Models 20W00 1210000
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intake..
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust
"Valve dearance with valve springs installed and piston
center (check when engine is cold). See Repair Manual
WARNIN G
. .
992030 (5041)
to find a dealer nearest
.2-13/64 i n . (56 mm)
12.48 cu. In. (206 cc)
75 mm (2.970 in.)
249 cc (15.22 win.)
18.64 cu. in. (305 cc)
3.300 in. (83.81 mm)
2.438 In. (61.67 mm)
0.030 in, (0.76 mm)
0.010 - 0.014 in. (0.25 -056mm)
0.030 in. (0.76 mm)
0.009 - O. O H in. (0.23
0.008- 0.012 in. (0.20 -0.30mm)
0.004 0.006 in. (0.10
in.
114
PIN
100005
100028
5056
604485
491588 (5043)
493537
690610
273356
692484
273930
5066
19368
19374
you,
in. (342 cc)
0.28 mm)"
0.15 mm)"