Briggs & Stratton 28W700 User Manual

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REPLACES FORM MS–5966–07/01/2003

FILE IN SECT. 2 OF SERVICE MANUAL

FORM MS–5966–12/01/2003

28W700

PRINTED IN U.S.A.

All rights reserved. No part of this material may be reproduced or transmitted,
in any form or by any means, electronic or mechanical, including photocopying,
recording or by any information storage and retrieval system, without permission
in writing from Briggs & Stratton Corporation.

COPYRIGHT by BRIGGS & STRATT ON CORPORATION

28W700

1058 OPERATOR’S MANUAL

27

28

29

32

27

32A

25

26

1330 REPAIR MANUAL

306

307

46

1035

43

1

2

3

552

691

718

8

9

186

84

10

3

7

9

4

1032

12

12

358 ENGINE GASKET KIT

20

51

415

1017

20

176

524

617

691

842

15

868

943

1022

22

4A

12

20

16

741

146

24

16A

810

16B

757

761

733

733
810

758

741

741

146

146

759

5966–2 Assemblies include all parts shown in frames. 12/1/2003

2

28W700

847

525

524

5

287

523

842

1027

1024

7

965

943

750

33

42

34

36

42

7

35

1095 VALVE GASKET SET

51

868

868

1022

13

45

1026

192

1029

914

238

1023

1034

1022

1022

51

50

617

337

635

383

617830

51

54

654

53

5966–3 Assemblies include all parts shown in frames. 12/1/2003

3

28W700

125

51

LMT / PART
NUMBER
LOCATIONS

131

130
95

975

137

987

93

142

133

WALBRO

141

634

692

106

105

104

186A

947

789

127

108

94

231

98

117

118

1091

141A

634A

108A

125A

131A

130A

95A

51

987A

217

NIKKI

133A

104A

975A

137A

369

1127

276A

141B

633

105A

108B

231A

117A

118A

98A

127A

94A

135

137A

276
950

121 CARBURETOR OVERHAUL KIT

104

51

93
95

105

106

977 CARBURETOR GASKET SET

51

137

117

118
127

729

137

142

276

231
276

634

634A

987

947A

121A CARBURETOR OVERHAUL KIT

51

95A

104A

105A

117A

977A CARBURETOR GASKET SET

51

137A

118A

127A

137A

231A

276A

633

276A

5966–4 Assemblies include all parts shown in frames. 12/1/2003

4

968

28W700

467

971

875

344

967

445

996

711

176

167

187

601

R

240

185

11

646

607

187A

601

268

918

601

269

270

209

202

616

227

404

614

505

562

222

216

232

271

188

559

265

267

5966–5 Assemblies include all parts shown in frames. 12/1/2003

5

28W700

969A

727

493A

732

304

921

969

1019 LABEL KIT

74

73

668

455

934

75

493

23

726

726A

695
165

78318

37

1036 EMISSION LABEL

1051

783

1051

783A

363

305

1006

1005

5966–6 Assemblies include all parts shown in frames. 12/1/2003

6

474
877

DUAL

CIRCUIT

1059

28W700

356

334

333

851

NOTE: ALL OLD STYLE STATORS USE

REFERENCE NUMBER1119 MOUNTING SCREW

729A

697

309

510

579

783

513

462

1051

1090

797

801

544

803

802

310

311

503

510A

1051

783A

513

783B

5966–7 Assemblies include all parts shown in frames. 12/1/2003

7

28W700

REF. PART REF. PART REF. PART

NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

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

5966–8 Assemblies include all parts shown in frames. 12/1/2003

8

28W700

REF. PART REF. PART REF. PART

NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

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

5966–9 Assemblies include all parts shown in frames. 12/1/2003

9

28W700

REF. PART REF. PART REF. PART

NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

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 

309 693551 Motor–Starter

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)
(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

5966–10 Assemblies include all parts shown in frames. 12/1/2003

10

28W700

REF. PART REF. PART REF. PART

NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

729 691335 Clip–Wire

(Fuel Solenoid)

729A 691224 Clip–Wire

(Starter Motor)

732 691002 Screw

(Starter Drive Cover)

733 691658 Screw

(Crankshaft Extension)

741 691284 Gear–Timing
750 691033 Screw

(Oil Pump Cover)

757 691714 Link–Counterweight
758 692423 Counterweight
759 691239 Pin–Counterweight
761 691096 Screw

(Counterweight Link)

783 693713 Gear–Pinion

(Steel Ring Gear Only)

783A 693059 Gear–Pinion

(Aluminum Ring Gear
Only)

783B 693058 Gear–Pinion

(Plastic Ring Gear
Only)

789 692037 Harness–Wiring

(Fuel Solenoid)

797 693167 Nut

(Brush Retainer)

801 691283 Cap–Drive
802 691286 Cap–End
803 693757 Housing–Starter
810 691779 Extension–Crankshaft
830 691095 Stud–Rocker Arm
842 691870 Seal–O Ring

(Dipstick Tube)

847 496415 Dipstick/Tube

Assembly

851 692424 Terminal–Spark Plug
868 ∅690968 Seal–Valve
875 696129 Base–Air Cleaner
877 393456 Wire/Connector–

Alternator

914 691108 Screw

(Rocker Cover)

921 692417 Cover–Blower Housing
934 691058 Screw

(Fan Retainer)

943 690589 Seal–O Ring

(Oil Pump Cover)

947 692734 Solenoid–Fuel

947A 695423 Solenoid–Fuel

950 691657 Screw–Float Bowl
965 499613 Cover–Oil Pump
967 272403 Filter–Pre Cleaner
968 692139 Cover–Air Cleaner
969 691108 Screw

(Blower Housing
Cover)

969A 690365 Screw

(Blower Housing
Cover)

971 692129 Screw

(Air Cleaner Base
to Carburetor)

975 495933 Bowl–Float

975A 695417 Bowl–Float

977 690192 Gasket Set–Carburetor

977A 695428 Gasket Set–Carburetor

987 691326 Seal–Throttle Shaft

987A 698777 Seal–Throttle Shaft

996 690678 Shield–Carburetor
1005 697853 Fan–Flywheel
1006 690452 Retainer–Fan
1017 690770 Screen–Oil Pump

Used on Type No(s).

0122.

1019 496758 Kit–Label
1022 ∅272475 Gasket–Rocker Cover
1023 691192 Cover–Rocker
1024 499054 Pump–Oil

1026 692003 Rod–Push

(Intake)

––––––– Note –––––
692011 Rod–Push

(Exhaust)

1027 492932 Filter–Oil
1029 691751 Arm–Rocker
1032 491710 Ball–Oil Pump
1034 690822 Guide–Push Rod
1035 693784 Shaft–Pump
1036 695700 Label–Emissions

(Used After Code Date

00063000).

––––––– Note –––––
695036 Label–

Emissions
(Used After Code Date
99093000 and Before
Code Date 00070100).
694318 Label–
Emissions
(Used After Code Date
98123100 and Before
Code Date 99100100).
499364 Label–
Emissions
(Used Before Code
Date 99010100).

1051 691265 Ring–Retaining
1058 273933 Operator’s Manual
1059 698516 Kit–Screw/Washer
1090 691293 Retainer–Brush
1091 691333 Cap–Limiter
1095 691581 Gasket Set–Valve

1119 691183 Screw

(Alternator)

1127 695407 Screw

(Float Bowl)

1330 272147 Repair Manual

 Engine Gasket Set – Reference Number 358
 Carburetor Overhaul Kit – Reference 121 & 121A

 Carburetor Gasket Set– Reference 977 & 977A

∅ Valve Gasket Set – Reference Number 1095

5966–11 Assemblies include all parts shown in frames. 12/1/2003

11