Briggs & Stratton 28W700 Series Setup guide

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.

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

307

306 691

718

32A 32

1058 OPERATOR’S MANUAL

552

186 10

1035

810

733

146

741

16 16A

146

741

1022

943

358 ENGINE GASKET KIT

868

842

691

524

176

617

761

759

758

810

733

16B

146

741

757

415

41017

1032

1330 REPAIR MANUAL

28W700

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

750

943

1027

524

842

287

523

847

525 965

1024

654

617

1022

1023

914

1022

868

1095 VALVE GASKET SET

383

337

635

1026

617830

1034

1022

238

36 868

1029

192

28W700

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

133

141A

947A

276A

1127

369

137A

104A

105A

217

987A

95A

130A 633

729

950

276

137

104

105

142

186A

1091

634A

692

634

987

130

108A

WALBRO NIKKI

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

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

117A

118A

93 118

117

118

118A

127

137A

135

28W700

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

185

646

176

344

971 996

711

445

967

167

968

467

875

607

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

493A

78318

493

732

304

969

969A

921

1036 EMISSION LABEL

727

305

1019 LABEL KIT

783A

1051

165

695

363

726 783

1051

726A

668

455

934

1006

1005

28W700

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

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

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

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

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

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