42
KEY PART
NO. NO.
DESCRIPTION
1 594100
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)
16 594104
Crankshaft
20
399781s Seal-Oil (PTO Side)
22
692551 Screw (Crankcase Cover/
Sump) (1/4-20 x 1.19)
22A
590673 Screw (Crankcase Cover/
Sump) (1/4-20 x .78)
23 594054
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 594103
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)
KEY PART
NO. NO.
DESCRIPTION
104 590558 Pin-Float
Hinge
105 594581 Valve-Float
Needle
117 594059 Jet-Main
(Standard)
118
593271 Jet-Main (High Altitude)
(5000 > 9000 Feet)
121 590589 Kit-Carburetor
Overhaul
122 590549 Spacer-Carburetor
125 594057 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)
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)
318
793480 Screw (Mounting Bracket)
(M5 x 14.1mm)
332 690662 Nut
(Flywheel)
333 595009 Armature-Magneto
334
691061 Screw (Magneto Armature)
337 594056 Plug-Spark
356 595018 Wire-Stop
358 594114 Gasket
Set-Engine
404
690272 Washer (Governor Crank)
445
593260 Filter-Air Cleaner Cartridge
BRIGGS & STRATTON 4-CYCLE ENGINE
MODEL NUMBER 103M02-0008-F1
3
I. GENERAL OPERATION
• Read, understand, and follow all
instructions on the machine and in the
manual before starting. Be thor ough ly
familiar with the controls and the proper
use of the machine before starting.
• Do not put hands or feet near or under
rotating parts.
• Keep all parts of your body away from
muffler and spinning line. A hot muffler
can cause serious burns.
• Only allow responsible individuals, who
are familiar with the instructions, to
operate the machine.
• Stay away from breakable objects, such
as house windows, auto glass, green-
hous es, etc.
• Clear the area of objects such as rocks,
toys, wire, bones, sticks, etc., which
could be picked up and thrown by the
spinning lines.
• Be sure the area is clear of other people
before trimming, particularly small chil-
dren and pets. Stop machine if anyone
enters the area.
• Wear appropriate clothing such as a
long-sleeved shirt or jacket. Also wear
long trousers or slacks. Do not wear
shorts.
• Do not wear loose clothing which could
get caught in this equipment.
• Do not operate the machine when bare-
foot or wearing open sandals. Always
wear work gloves and sturdy footwear.
Leather work shoes or short boots work
well for most people. These will protect
the operator’s ankles and shins from
small sticks, splinters, and other debris,
and improve traction.
WARNING:
Engine exhaust, some
of its constituents, and certain vehicle
com po nents contain or emit chem i cals
known to the State of Cal i for nia to cause
can cer and birth defects or oth er re pro-
duc tive harm.
CAUTION:
Muffler and other engine
parts become extremely hot during
operation and remain hot after engine
has stopped. To avoid severe burns on
contact, stay away from these areas.
• Do not pull machine backwards unless ab-
solutely necessary. Always look down and
behind before and while moving backwards.
• Do not operate the machine without
proper guards, plates or other safety
protective devices in place.
• See manufacturer’s instructions for
proper operation and installation of
accessories. Only use accessories ap-
proved by the manufacturer.
• Never use blades, wire, or flailing devices.
This unit is designed for line trimmer use
only. Use of other ac ces so ries or attach-
ments will increase the risk of injury.
• Stop the rotating trimmer head when
crossing gravel drives, walks, or roads.
Wait for the cutting lines to stop rotat-
ing.
• Stop the engine (motor) whenever
you leave the equipment and allow it
to cool, before cleaning, repairing or
inspecting the unit. Be sure the trim-
mer head and all moving parts have
stopped.
• Operate only in daylight or good artifi-
cial light.
• Do not operate the machine while un-
der 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 and walk; never
run.
• If the equipment should start to vibrate
abnormally, stop the engine (motor)
and check immediately for the cause.
Vibration is generally a warning of
trouble.
• Always wear safety goggles or safety
glasses with side shields when op er at-
ing machine.
II. SLOPE OPERATION
Slopes are a major factor related to slip and
fall accidents which can result in severe
injury. All slopes require extra caution. If
you feel uneasy on a slope, do not trim it.
DO:
• Trim 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, or bumps. Tall
grass can hide obstacles.
