Briggs & Stratton 28W700 Series Setup guide

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PRINTED IN U.S.A.
FORM MS–5966–12/01/2003
REPLACES FORM MS–5966–07/01/2003
FILE IN SECT. 2 OF SERVICE MANUAL
28W700
Illustrated Parts List
Model Series
28W700
TYPE NUMBERS
0121, 0122.
TABLE OF CONTENTS
Air Cleaner 5. . . . . . . . . . . . . . . . . . . . . . . . .
Alternator 7. . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Housing/Shrouds 6. . . . . . . . . . . .
Cams 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carburetor 4. . . . . . . . . . . . . . . . . . . . . . . . .
Controls 5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankcase Cover/Sump 2. . . . . . . . . . . . .
Crankshaft 2. . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric Starter 7. . . . . . . . . . . . . . . . . . . . .
Flywheel 6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Tank 6. . . . . . . . . . . . . . . . . . . . . . . . . .
Governor Spring 5. . . . . . . . . . . . . . . . . . . .
Head 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition 7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kits/Gaskets–Carburetor 4. . . . . . . . . . . .
Kits/Gaskets–Valve 2. . . . . . . . . . . . . . . . .
Muffler 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Piston Group 2. . . . . . . . . . . . . . . . . . . . . . .
Rewind 7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valves 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

28W700
5966–2 Assemblies include all parts shown in frames. 12/1/2003
2
307
306 691
718
3
26
27
22
15
20
12
27
4A
25
28
29
32A 32
1058 OPERATOR’S MANUAL
552
1
2
186 10
9
8
84
43
1035
46
24
810
733
146
741
16 16A
146
741
1022
943
12
9
7
3
358 ENGINE GASKET KIT
868
842
691
524
176
51
20
617
761
759
758
810
733
16B
146
741
757
415
41017
12
20
1032
1330 REPAIR MANUAL

28W700
5966–3 Assemblies include all parts shown in frames. 12/1/2003
3
51
750
943
1027
524
842
287
523
847
525 965
1024
53
54
654
617
50
1022
1023
914
1022
868
51
1095 VALVE GASKET SET
7
45
383
337
635
1026
13
617830
1034
1022
7
238
36 868
1029
33
5
192
35
51
42
34
42

28W700
5966–4 Assemblies include all parts shown in frames. 12/1/2003
4
94
133
141A
947A
276A
1127
369
137A
104A
105A
51
217
987A
95A
130A 633
729
950
276
137
104
105
142
186A
1091
634A
692
634
51
93
987
95
130
108A
WALBRO NIKKI
98
789
947
975
125 141
131
LMT / PART
NUMBER
LOCATIONS
231
108
117
106
98A
133A
94A
975A
117A
141B
125A
131A
127A
231A
108B
121 CARBURETOR OVERHAUL KIT
977 CARBURETOR GASKET SET
137 276
95
104
105
127
106
137
142
987
634
231
634A
276
977ACARBURETOR GASKET SET
137A 276A
121ACARBURETOR OVERHAUL KIT
95A
104A
105A
127A
137A
231A
633
276A
51
117A
118A
93 118
117
118
118A
127
51
51
51
137A
135

28W700
5966–5 Assemblies include all parts shown in frames. 12/1/2003
5
185
646
176
344
971 996
711
445
967
167
968
467
R
875
607
11
216
202
232
268
269
271
270
559 267
265
209
222
188
616
404 614
562
505
240
918
187
601 601
227
187A
601

28W700
5966–6 Assemblies include all parts shown in frames. 12/1/2003
6
493A
37
78318
493
732
304
969
969A
921
1036 EMISSION LABEL
727
305
1019 LABEL KIT
783A
1051
165
695
363
726 783
1051
23
726A
74
73
668
75
455
934
1006
1005

28W700
5966–7 Assemblies include all parts shown in frames. 12/1/2003
7
356
851
334
333
474
877
DUAL
CIRCUIT
1059
783B
513
783A
1051
802
797
462
579
513
783
1051
503
310
803
544
801
311
309
1090
510
510A
697
729A
NOTE: ALL OLD STYLE STATORS USE
REFERENCE NUMBER1119 MOUNTING SCREW

28W700
5966–8 Assemblies include all parts shown in frames. 12/1/2003
8
1 496412 Cylinder Assembly
2 399265 Kit–Bushing/Seal
(Magneto Side)
3391086 Seal–Oil
4 693582 Sump–Engine
Used on Type No(s).
0122.
4A 494238 Sump–Engine
Used on Type No(s).
0121.
5 698148 Head–Cylinder
7∅273280 Gasket–Cylinder Head
8 696126 Breather Assembly
927803 Gasket–Breather
10 691666 Screw
(Breather Assembly)
11 691328 Tube–Breather
12 692226 Gasket–Crankcase
(.015” Standard)
––––––– Note –––––
692406 Gasket–
Crankcase
(.005”)
692405 Gasket–
Crankcase
(.009”)
13 690360 Screw
(Cylinder Head)
15 690946 Plug–Oil Drain
16 690136 Crankshaft
(Used After Code Date
98063000).
16A 693944 Crankshaft
16B 693653 Crankshaft
20 291675 Seal–Oil
(PTO Side)
22 692125 Screw
(Crankcase
Cover/Sump)
23 693557 Flywheel
(Steel Ring Gear)
24 222698 Key–Flywheel
25 696397 Piston Assembly
(Standard)
(Used After Code Date
01041800).
696398 Piston
Assembly
(.010” Oversize)
(Used After Code Date
01041800).
696399 Piston
Assembly
(.020” Oversize)
(Used After Code Date
01041800).
696400 Piston
Assembly
(.030” Oversize)
(Used After Code Date
01041800).
––––––– Note –––––
499284 Piston
Assembly
(Standard)
(Used Before Code
Date 01041900).
499288 Piston
Assembly
(.010” Oversize)
(Used Before Code
Date 01041900).
499292 Piston
Assembly
(.020” Oversize)
(Used Before Code
Date 01041900).
499296 Piston
Assembly
(.030” Oversize)
(Used Before Code
Date 01041900).
26 696403 Ring Set
(Standard)
(Used After Code Date
01041800).
696404 Ring Set
(.010” Oversize)
(Used After Code Date
01041800).
696405 Ring Set
(.020” Oversize)
(Used After Code Date
01041800).
696406 Ring Set
(.030” Oversize)
(Used After Code Date
01041800).
––––––– Note –––––
495854 Ring Set
(Standard)
(Used Before Code
Date 01041900).
495852 Ring Set
(.010” Oversize)
(Used Before Code
Date 01041900).
495851 Ring Set
(.020” Oversize)
(Used Before Code
Date 01041900).
495855 Ring Set
(.030” Oversize)
(Used Before Code
Date 01041900).
27 691299 Lock–Piston Pin
28 498319 Pin–Piston
(Standard)
––––––– Note –––––
498320 Pin–Piston
(.005” Oversize)
Engine Gasket Set – Reference Number 358
Carburetor Overhaul Kit – Reference 121 & 121A Carburetor Gasket Set– Reference 977 & 977A
∅Valve Gasket Set – Reference Number 1095
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

28W700
5966–9 Assemblies include all parts shown in frames. 12/1/2003
9
29 692419 Rod–Connecting
(Standard)
(Used After Code Date
98063000).
––––––– Note –––––
494504 Rod–
Connecting
(Standard)
(Used Before Code
Date 98070100).
692420 Rod–
Connecting
(.020” Undersize)
(Used After Code Date
98063000).
495490 Rod–
Connecting
(.020” Undersize)
(Used Before Code
Date 98070100).
32 692852 Screw
(Connecting Rod)
(Used After Code Date
98063000).
32A 690356 Screw
(Connecting Rod)
(1 7/8” Long)
(Used Before Code
Date 98070100).
––––––– Note –––––
690348 Screw
(Connecting Rod)
(1 5/8” Long)
(Used Before Code
Date 98070100).
33 695760 Valve–Exhaust
34 695761 Valve–Intake
35 691279 Valve Spring
(Intake)
36 691279 Spring–Valve
(Exhaust)
37 690456 Guard–Flywheel
42 499586 Keeper–Valve
43 691968 Slinger–Governor/Oil
45 690564 Tappet–Valve
46 698492 Camshaft
Used on Type No(s).
0121, 0122.
50 690193 Manifold–Intake
51∅692137 Gasket–Intake
53 690227 Stud
(Carburetor)
54 691148 Screw
(Intake Manifold)
73 690492 Screen–Rotating
74 691655 Screw
(Rotating Screen)
75 690582 Washer
(Flywheel)
78 697561 Screw
(Flywheel Guard)
84 690343 Plug–Breather
93 690602 Bushing–Throttle Shaft
94 498030 Kit–Idle Mixture
94A 695425 Kit–Idle Mixture
95 691636 Screw
(Throttle Valve)
95A 690718 Screw
(Throttle Valve)
98 495800 Kit–Idle Speed
98A 695408 Kit–Idle Speed
104 690525 Pin–Float Hinge
104A 694918 Pin–Float Hinge
105 231855 Valve–Float Needle
105A 694922 Valve–Float Needle
106 690577 Seat–Inlet
108 690464 Valve–Choke
(LMT 155)
108A 692344 Valve–Choke
(LMT 154)
108B 695419 Valve–Choke
117 692408 Jet–Main
(Standard)
117A 695415 Jet–Main
(Standard)
118 692411 Jet–Main
(High Altitude)
118A 695416 Jet–Main
(High Altitude)
121 690191 Kit–Carburetor
Overhaul
121A 695427 Kit–Carburetor
Overhaul
125 698620 Carburetor
(LMT 154, 155)
125A Carburetor
(Nikki Carburetor,
Service with Walbro
Carburetor)
127 695005 Plug–Welch
127A 690727 Plug–Welch
130 691750 Valve–Throttle
130A 695418 Valve–Throttle
131 494379 Kit–Throttle Shaft
131A 695421 Kit–Throttle Shaft
133 494381 Float–Carburetor
133A 694914 Float–Carburetor
135 696142 Tube–Fuel Transfer
137 281165 Gasket–Float Bowl
137A 695426 Gasket–Float Bowl
141 495097 Kit–Choke Shaft
(LMT 155)
141A 495931 Kit–Choke Shaft
(LMT 154)
141B 695420 Kit–Choke Shaft
142 692412 Nozzle–Carburetor
146 691639 Key–Timing
165 693148 Nut
(Ring Gear)
167 692297 Seal–Air Cleaner Nut
176 691917 Seal–O Ring
(Air Cleaner Base)
185 690958 Nut
(Air Cleaner Brace)
186 691609 Connector–Hose
(Breather Assembly)
186A 692317 Connector–Hose
(Carburetor)
187 691050 Line–Fuel
(Cut to
Required Length)
187A 697098 Line–Fuel
(Formed)
(3.5” Long)
––––––– Note –––––
697907 Line–Fuel
(Formed)
(9.6” Long)
188 691693 Screw
(Control Bracket)
192 691986 Adjuster–Rocker Arm
Engine Gasket Set – Reference Number 358
Carburetor Overhaul Kit – Reference 121 & 121A Carburetor Gasket Set– Reference 977 & 977A
∅Valve Gasket Set – Reference Number 1095
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

28W700
5966–10 Assemblies include all parts shown in frames. 12/1/2003
10
202 691841 Link–Mechanical
Governor
209 692208 Spring–Governor
216 691840 Link–Choke
217 695409 Spring–Choke Return
222 694042 Bracket–Control
227 691374 Lever–Governor
Control
231 691636 Screw
(Choke Valve)
231A 690718 Screw
(Choke Valve)
232 691842 Link Spring–Governor
238 691843 Cap–Valve
240 298090 Filter–Fuel
265 221535 Clamp–Casing
267 690804 Screw
(Casing Clamp)
268 691025 Casing–Control Wire
(Cut to
Required Length)
269 691026 Wire–Control
(Cut to
Required Length)
270 691027 Nut
(Control Wire Casing)
271 691028 Lever–Control
276 692255 Washer–Sealing
276A 695410 Washer–Sealing
287 691002 Screw
(Dipstick Tube)
304 690497 Housing–Blower
305 69108 Screw
(Blower Housing)
306 698454 Shield–Cylinder
307 691003 Screw
(Cylinder Shield)
309 693551 Motor–Starter
(Steel Ring Gear Only)
––––––– Note –––––
497595 Motor–Starter
(Plastic Ring Gear
Only)
310 690323 Screw
(Starter Motor)
311 497608 Set–Brush
318 692127 Screw
(Mounting Bracket)
333 492341 Armature–Magneto
334 691061 Screw
(Magneto Armature)
337 491055 Plug–Spark
344 693675 Screw
(Cable Clamp)
(Air Cleaner Base)
356 690807 Wire–Stop
358 691580 Gasket Set–Engine
363 19203 Puller–Flywheel
369 695422 Spring–Float Bowl
383 89838 Wrench–Spark Plug
404 691691 Washer
(Governor Crank)
415 690283 Plug
(Pressure Relief Valve)
445 496894 Filter–Air Cleaner
Cartridge
455 691173 Cup–Flywheel
462 691261 Washer
(Starter Cable)
467 691668 Knob–Air Cleaner
474 696459 Alternator
(Dual Circuit)
493 690493 Bracket–Mounting
(Front)
493A 690494 Bracket–Mounting
(Rear)
503 691532 Strap–Starter
505 691251 Nut
(Governor Control
Lever)
510 693699 Drive–Starter
(Used With
Steel Ring Gear)
510A 497606 Drive–Starter
(Used With
Aluminum and Plastic
Ring Gears)
513 692024 Clutch–Drive
523 692014 Dipstick
524 281370 Seal–Dipstick Tube
525 691398 Tube–Dipstick
544 692034 Armature–Starter
552 491986 Bushing–Governor
Crank
559 690661 Screw
(Remote Choke Stop)
562 691119 Screw
(Governor Control
Lever)
579 691029 Nut
(Starter Cable)
601 95162 Clamp–Hose
607 691693 Screw
(Air Cleaner Brace)
614 691620 Pin–Cotter
616 692012 Crank–Governor
617 ∅692138 Seal–O-Ring
(Intake Manifold)
633 695414 Seal–Choke/Throttle
Shaft
634 690801 Spring/Seal Assembly
(LMT 155)
634A 690802 Spring/Seal Assembly
(LMT 154)
635 691909 Boot–Spark Plug
646 690460 Brace–Air Cleaner
654 690958 Nut
(Carburetor)
668 691323 Spacer
(Flywheel Cup)
691 692407 Seal–Governor Shaft
692 690572 Spring–Detent
(LMT 155)
695 693109 Screw
(Ring Gear)
697 690372 Screw
(Drive Cap)
711 690703 Screw
(Carburetor Shield)
718 690959 Pin–Locating
726 Gear–Ring
(Steel)
(See Reference 23
for Service)
726A 399676 Gear–Ring
(Aluminum)
(Services Plastic Ring
Gear Only)
727 490324 Cover–Starter Drive
Engine Gasket Set – Reference Number 358
Carburetor Overhaul Kit – Reference 121 & 121A Carburetor Gasket Set– Reference 977 & 977A
∅Valve Gasket Set – Reference Number 1095
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION