
30
BRIGGS & STRATTON 4-CYCLE ENGINE MODEL NUMBER 104M05-0093-F1
KEY PART
NO. NO. DESCRIPTION
1 595179 Cylinder Assembly
3 299819s Seal-Oil (Magneto Side)
4 594101 Sump-Engine
5 594091 Head-Cylinder
7 592358 Gasket-Cylinder Head
11 590522 Tube-Breather
12 799587 Gasket-Crankcase
13 590512 Screw (Cylinder Head)
(M7 x 60 mm)
16 594104 Crankshaft
20 399781s Seal-Oil (PTO Side)
22 692551 Screw (Crankcase Cover /
Sump) (1/4-20 x 1.1)
22A 590673 Screw (Crankcase Cover /
Sump) (1/4-20 x .7)
23 595183 Flywheel
24 222698s Key-Flywheel (Aluminum)
25 594099 Piston Assembly (Standard)
26 594098 Ring Set (Standard)
27 691588 Lock-Piston Pin
28 298909 Pin-Piston
29 594089 Rod-Connecting
32 691664 Screw (Connecting Rod)
33 594095 Valve-Exhaust
34 594094 Valve-Intake
35 590532 Spring-Valve (Intake)
36 590532 Spring-Valve (Exhaust)
37 595188 Guard-Flywheel
40 594092 Retainer-Valve
43 697799 Slinger-Governor/Oil
45 590514 Tappet-Valve
46 594090 Camshaft
48 N/A Short Block
(Not Available at this Printing)
58 591108 Rope-Starter
60 281434s Grip-Starter Rope
78 793480 Screw (Flywheel Guard)
(M5 x 14 mm)
104 590558 Pin-Float Hinge
KEY PART
NO. NO. DESCRIPTION
105 594581 Valve-Float Needle
117 594060 Jet-Main (Standard)
118 594063 Jet-Main (High Altitude)
(5000 > 9000 Feet)
121 594636 Kit-Carburetor Overhaul
122 590549 Spacer-Carburetor
125 594058 Carburetor
133 591120 Float-Carburetor
137 594633 Gasket-Float Bowl (Pack of 5)
155 594093 Plate-Cylinder Head
163 799580 Gasket-Air Cleaner
187 791766 Line-Fuel
(Cut to Required Length)
188 793480 Screw (Control Bracket)
(M5 x 14 mm)
192 590535 Adjuster-Rocker Arm
202 590517 Link-Mechanical Governor
209 590541 Spring-Governor (Purple)
216 590547 Link-Choke
217 590740 Spring-Choke Return
222 590560 Bracket-Control
227 590520 Lever-Governor Control
238 594097 Cap-Valve
300 594108 Muffler
305 590586 Screw (Blower Housing)
(M5 x 29 mm)
309 594360 Motor-Starter
318 793480 Screw (Mounting Bracket)
(M5 x 14 mm)
332 690662 Nut (Flywheel)
333 595009 Armature-Magneto
334 691061 Screw (Magneto Armature)
(#8-32 x .9)
337 491055s Plug-Spark
356 595018 Wire-Stop
358 595354 Gasket Set-Engine
404 690272 Washer (Governor Crank)
445 593260 Filter-Air Cleaner Cartridge
455 593960 Cup-Flywheel
3
• Do not operate the machine while under
the influence of alcohol or drugs.
• Never operate machine in wet grass.
Always be sure of your footing: keep a
firm hold on the handle; walk, never run.
• Disengage the drivesystem, if soequipped,
before starting the engine (motor).
• If the equipment should start to vibrate
abnormally, stop the engine (motor) and
check immediately for the cause. Vibra-
tion is generally a warning of trouble.
• Always wear eye protection when oper-
ating machine.
• Use extra care when approaching blind
corners, shrubs, trees, or other objects
that may obscure vision.
• When loading or unloading this ma-
chine, do not exceed the maximum
recommended operation angle of 15°.
• Wear proper Personal Protective Equip-
ment (PPE) while operating this machine,
including (at a minimum) sturdy footwear,
eye protection, and hearing protection. Do
not mow in shorts or open toed footwear.
Always let someone know you are outside
mowing.
III. SLOPE OPERATION
Slopes are a major factor related to slip &
fall accidents, which can result in severe
injury. All slopes require extra caution. If
you feel uneasy on a slope, do not mow it.
DO:
• Mow across the face of slopes: never
up and down. Exercise extreme caution
when changing direction on slopes.
• Remove obstacles such as rocks, tree
limbs, etc.
• Watch for holes, ruts, bumps or hidden
objects. Uneven terrain could cause a
slip and fall accident. Tall grass can hide
obstacles.
DO NOT:
• Do not mow near drop-offs, ditches or
embankments. You could lose your foot-
ing or balance.
• Do not mow on wet grass or excessively
steep slopes. Poor footing could cause
a slip and fall accident.
IV. SAFE HANDLING OF GASOLINE
To avoid personal injury or property dam-
age, use extreme care in handling gaso-
line. Gasoline is extremely flammable and
the vapors are explosive.
• Extinguish all cigarettes, cigars, pipes
and other sources of ignition.
• Use only an approved container.
• Never remove gas cap or add fuel with
the engine running.
• Allow engine to cool before refueling.
• Never refuel the machine indoors.
• Never store the machine or fuel contain-
er where there is an open flame, spark
or pilot light such as a water heater or
on other appliances.
• Never fill containers inside a vehicle, on
a truck or trailer bed with a plastic liner.
Always place containers on the ground
away from your vehicle before filling.
• Remove gas-powered equipment from
the truck or trailer and refuel it on the
ground. If this is not possible, then
refuel such equipment with a portable
container, rather than from a gasoline
dispenser nozzle.
• Keep the nozzle in contact with the rim
of the fuel tank or container opening at
all times until fueling is complete. Do
not use a nozzle lock-open device.
• If fuel is spilled on clothing, change
clothing immediately.
• Never overfill fuel tank. Replace gas
cap and tighten securely.
V. GENERAL SERVICE
• Never run a machine inside a closed area.
• Never make adjustments or repairs with
the engine (motor) running. Disconnect
the spark plug wire, and keep the wire
away from the plug to prevent accidental
starting.
• Keep all nuts and bolts tight to be sure the
equipment is in safe working condition.
• Never tamper with safety devices. Check
their proper operation regularly. Never
do anything to interfere with the intended
function of a safety device or reduce the
protection provided by a safety device.
• Keep machine free of grass, leaves, or
other debris build-up. Clean oil or fuel
spillage. Allow machine to cool before
storing.
• Stop and inspect the equipment if you
strike an object. Repair, if necessary,
before restarting.
• Never attempt to make wheel height
adjustments while the engine is running.
• Grass catcher components are subject
to wear, damage, and deterioration,
which could expose moving parts or
allow objects to be thrown. Frequently
check components and replace with
manufacturer’s recommended parts,
when necessary.
• Mower blades are sharp and can cut.
Wrap the blade(s) or wear gloves, and
use extra caution when servicing them.
• Do not change the engine governor set-
ting or overspeed the engine.
• Maintain or replace safety and instruc-
tion labels, as necessary.