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COPYRIGHT by BRIGGS & STRATTON CORPORATIONAll 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 permissionin writing from Briggs & Stratton Corporation.

PRINTED IN U.S.A.

FORM MS--3506--01/19/2006REPLACES FORM MS--3506--08/01/2005FILE IN SECT. 2 OF SERVICE MANUAL

31X700

Illustrated Parts ListModel Series

31X700TYPE NUMBERS

0777.

TABLE OF CONTENTS

Air Cleaner 5. . . . . . . . . . . . . . . . . . . . . . . . .

Alternator 7. . . . . . . . . . . . . . . . . . . . . . . . . .

Blower Housing 5. . . . . . . . . . . . . . . . . . . . .

Camshaft 2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Carburetor 4. . . . . . . . . . . . . . . . . . . . . . . . . .

Controls 7. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Crankshaft 2. . . . . . . . . . . . . . . . . . . . . . . . . .

Cylinder 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cylinder Head 3. . . . . . . . . . . . . . . . . . . . . . .

Electric Starter 7. . . . . . . . . . . . . . . . . . . . . .

Engine Sump 2. . . . . . . . . . . . . . . . . . . . . . .

Flywheel 6. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel Supply 5. . . . . . . . . . . . . . . . . . . . . . . . .

Governor Spring 7. . . . . . . . . . . . . . . . . . . .

Ignition 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Kit -- Carburetor Overhaul 4. . . . . . . . . . . .

Gasket Set -- Engine 2. . . . . . . . . . . . . . . . .

Gasket Set -- Valve 3. . . . . . . . . . . . . . . . . .

Lubrication 3. . . . . . . . . . . . . . . . . . . . . . . . .

Piston, Rings, Connecting Rod 2. . . . . . .

Valves 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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31X700

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.3506--2 Assemblies include all parts shown in frames. 10/23/2006

2

2932

307

306

718

3

22

15

1

2

24

691552

10358 ENGINE GASKET SET

11

584

9

1263

1264

43

1270758

759

757

1058 OPERATOR’S MANUAL

524

1022

12

9

7

3

868

842

691

51

20

617

1266

27

28

26

2725

741

146

12

20

4

883

16

46

1330 REPAIR MANUAL

24

45

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31X700

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.3506--3 Assemblies include all parts shown in frames. 10/23/2006

3

51

617

50

617

830

1034

1022

517

238 36

868

1029

335

34

192

35

53

54

45

383

337

635

1026

13

1022

1023

914

1022

868

51

1095 VALVE GASKET SET

7

654

847

523

842

525

524

4242

883

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31X700

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.3506--4 Assemblies include all parts shown in frames. 10/23/2006

4

94

133

276

137

104

105

142

186

1091

634

51

93

98795

130

98

947

975

125141

131

LMT / PARTNUMBERLOCATIONS

108

117

106

121 CARBURETOR OVERHAUL KIT

977 CARBURETOR GASKET SET

51 137 276

51

95

104

105

106

137

142

987

634

276

93

117

127

1266A

1266

617

950

431 1266A

1266

240

692

186A

634A

108A

141A

187B

601

118

634A121A CARBURETOR OVERHAUL KIT

95A

104A

105A

127A

617

987A

634B

117A51

1266

1266A

WALBRO

187B

601

104A

105A

51

634B

987A

95A

130A

NIKKI

98A

133A

94A

117A

141B

131A

127A

108B

947A

276A

118A

1127

975A

137A

135

137A

137A

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31X700

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.3506--5 Assemblies include all parts shown in frames. 10/23/2006

5

1267

967

305

643

968

304

305A

1036 EMISSIONS LABEL

73

74

1040

445

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31X700

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.3506--6 Assemblies include all parts shown in frames. 10/23/2006

6

37

78

783

105123

1070

363

1005

1044

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31X700

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.3506--7 Assemblies include all parts shown in frames. 10/23/2006

7

878

474A

877

DUALCIRCUIT

1059

851

334

333

1054

216 202

232

268

269

271

270

267

265209

222

188

616

404614

562

505

227

697

1051

510

513

783

802

462579

503

310803

544

801

309

1090 311

797

789A

NOTE: All stators use a No. mounting screw.1119

NOTE: The proper flywheel part number and/or the alternator magnet size willdetermine the alternator type or output. See repair instruction manualfor additional information.

729A

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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

31X700

K Included in Engine Gasket Set--Ref. No.358.D Included in Carburetor Overhaul Kit--Ref. No. 121 or 121A.

z Included in Carburetor Gasket Set--Ref. No. 977. Included in Valve Gasket Set--Ref. No 1095.

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.3506--8 Assemblies include all parts shown in frames. 10/23/2006

8

1 697174 Cylinder Assembly2 399265 Kit--Bushing/Seal

(Magneto Side)3 K391086s Seal--Oil

(Magneto Side)4 697106 Sump--Engine

(Used After Code Date05100200).-- -- -- -- -- -- -- Note -- -- -- -- --795903 Sump--Engine(Used Before CodeDate 05100300).(Must Use Kit 795903,Includes Sump AndCounterweight).

5 698148 Head--Cylinder7 K699168 Gasket--Cylinder Head9 K697109 Gasket--Breather10 697157 Screw

(Breather Assembly)11 697113 Tube--Breather12 K697110 Gasket--Crankcase

(.015”Thick)(Standard)

13 690360 Screw(Cylinder Head)

15 690946 Plug--Oil Drain(3/8” Diameter)

16 697127 Crankshaft20 K791892 Seal--Oil

(PTO Side)22 692125 Screw

(CrankcaseCover/Sump)

23 693557 Flywheel24 222698s Key--Flywheel25 792507 Piston Assembly

(Standard)-- -- -- -- -- -- Note -- -- -- -- -- --792648 PistonAssembly(.020” Oversize)

26 791936 Ring Set--STD(Standard)-- -- -- -- -- -- Note -- -- -- -- -- --791947 Ring Set--STD(.020” Oversize)

27 698469 Lock--Piston Pin28 697099 Pin--Piston

(Standard)29 791631 Rod--Connecting

(Standard)32 791118 Screw

(Connecting Rod)

33 695760 Valve--Exhaust34 695761 Valve--Intake35 691279 Spring--Valve

(Intake)36 691279 Spring--Valve

(Exhaust)37 697352 Guard--Flywheel42 499586 Keeper--Valve43 691968 Slinger--Governor/Oil45 690564 Tappet--Valve46 790400 Camshaft50 690193 Manifold--Intake51KDz692137 Gasket--Intake53 690227 Stud

(Carburetor)54 691148 Screw

(Intake Manifold)73 697133 Screen--Rotating74 697897 Screw

(Rotating Screen)78 691003 Screw

(Flywheel Guard)93 D690602 Bushing--Throttle Shaft94 498030 Kit--Idle Mixture

94A 695425 Kit--Idle Mixture95 D691636 Screw

(Throttle Valve)95A D690718 Screw

(Throttle Valve)98 495800 Kit--Idle Speed

98A 695408 Kit--Idle Speed104 D690525 Pin--Float Hinge

104A D694918 Pin--Float Hinge105 D231855s Valve--Float Needle

105A D696136 Valve--Float Needle106 D690577 Seat--Inlet

(Gravity Feed)108 690464 Valve--Choke

(Walbro CarburetorPart No. 697204)

108A 692344 Valve--Choke(Walbro CarburetorPart No. 697203)

108B 695419 Valve--Choke117 D694352 Jet--Main

(Standard)117A D699457 Jet--Main

(Standard)118 697228 Jet--Main

(High Altitude)118A 699458 Jet--Main

(High Altitude)

121 697241 Kit--CarburetorOverhaul(Walbro Carburetor)

121A 699521 Kit--CarburetorOverhaul(Nikki Carburetor)

125 793224 Carburetor(Gravity Feed)

127 695005 Plug--Welch(5/16” Diameter)

127A D690727 Plug--Welch130 691750 Valve--Throttle

130A 699500 Valve--Throttle131 790901 Kit--Throttle Shaft

131A 699501 Kit--Throttle Shaft133 494381 Float--Carburetor

133A 694914 Float--Carburetor135 698780 Tube--Fuel Transfer137Dz281165s Gasket--Float Bowl

137A D698781 Gasket--Float Bowl141 790905 Kit--Choke Shaft

(Walbro CarburetorPart No. 697204)

141A 790902 Kit--Choke Shaft(Walbro CarburetorPart No. 697203)

141B 792777 Kit--Choke Shaft142 D697140 Nozzle--Carburetor

(Standard)146 691639 Key--Timing186 692317 Connector--Hose

(90 Degree)186A 698174 Connector--Hose

(Straight)187B 791805 Line--Fuel

(Formed)(10--1/4Inches Long)(Cut toRequired Length)

188 691693 Screw(Control Bracket)

192 691986 Adjuster--Rocker Arm202 691841 Link--Mechanical

Governor209 692208 Spring--Governor

(Green)216 691840 Link--Choke222 694042 Bracket--Control227 691374 Lever--Governor

Control232 691842 Spring--Governor Link238 691843 Cap--Valve

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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

31X700

K Included in Engine Gasket Set--Ref. No.358.D Included in Carburetor Overhaul Kit--Ref. No. 121 or 121A.

z Included in Carburetor Gasket Set--Ref. No. 977. Included in Valve Gasket Set--Ref. No 1095.

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.3506--9 Assemblies include all parts shown in frames. 10/23/2006

9

240 394358s Filter--Fuel(White, 75 Microns)

265 691024 Clamp--Casing267 695134 Screw

(Casing Clamp)268 691025 Casing--Control Wire

(Cut To RequiredLength)

269 691026 Wire--Control(Cut To RequiredLength)

270 691027 Nut(Control Wire Casing)

271 691028 Lever--Control276 Dz692255 Washer--Sealing

276A 695410 Washer--Sealing304 698402 Housing--Blower

(Red)305 697102 Screw

(Blower Housing)305A 697103 Screw

(Blower Housing)306 697107 Shield--Cylinder307 691003 Screw

(Cylinder Shield)309 693551 Motor--Starter310 690323 Screw

(Starter Motor)311 497608 Brush Set333 492341 Armature--Magneto334 691061 Screw

(Magneto Armature)337 491055s Plug--Spark358 697191 Gasket Set--Engine363 19203 Puller--Flywheel383 89838s Wrench--Spark Plug404 691691 Washer

(Governor Crank)431 697122 Elbow--Intake445 698083 Filter--Air Cleaner

Cartridge(Non Washable)

462 691261 Washer(Starter Cable)

474A 696459 Alternator(Dual Circuit)

503 691532 Strap--Starter505 691251 Nut

(Governor ControlLever)

510 693699 Drive--Starter513 692024 Clutch--Drive523 699908 Dipstick524 K691032 Seal--Dipstick Tube525 697184 Tube--Dipstick544 692034 Armature--Starter552 697144 Bushing--Governor

Crank562 691119 Bolt

(Governor ControlLever)

579 691029 Nut(Starter Cable)

584 697112 Cover--BreatherPassage

601 791850 Clamp--Hose614 691620 Pin--Cotter616 692012 Crank--Governor617 KD692138 Seal--O Ring

(Intake Manifold)634 D690801 Spring/Seal Assembly

(Walbro CarburetorPart No. 697204)

634A D690802 Spring/Seal Assembly(Walbro CarburetorPart No.s 696181,697203)

634B D698779 Spring/Seal Assembly635 691909 Boot--Spark Plug643 698401 Retainer--Air Filter654 690958 Nut

(Carburetor)691 K692407 Seal--Governor Shaft692 690572 Spring--Detent697 690372 Screw

(Drive Cap)

718 690959 Pin--Locating729A 691224 Clip--Wire741 697128 Gear--Timing757 697607 Link--Counterweight758 793763 Counterweight

(Used After Code Date05100200).-- -- -- -- -- -- -- Note -- -- -- -- --794903 Counterweight(Used Before CodeDate 05100300).(Must Use Kit 795903,Includes Sump AndCounterweight).

759 697392 Pin--Counterweight783 693713 Gear--Pinion

789A 698329 Harness--Wiring797 693167 Nut

(Brush Retainer)801 691283 Cap--Drive802 691286 Cap--End803 Housing--Starter

(Not ServicedSeparately, OrderStarter Motor 693551)

830 691095 Stud--Rocker Arm842 K691031 Seal--O Ring

(Dipstick Tube)847 790442 Dipstick/Tube

Assembly851 692424 Terminal--Spark Plug868 K690968 Seal--Valve877 393456 Wire/Connector--

Alternator(Dual Circuit)

878 398661 Harness--Alternator(Dual Circuit)

883 K692236 Gasket--Exhaust914 691108 Screw

(Rocker Cover)947 694393 Solenoid--Fuel

947A 699915 Solenoid--Fuel950 691657 Screw--Float Bowl967 697015 Filter--Pre Cleaner968 698403 Cover--Air Cleaner

(Black)

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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

31X700

K Included in Engine Gasket Set--Ref. No.358.D Included in Carburetor Overhaul Kit--Ref. No. 121 or 121A.

z Included in Carburetor Gasket Set--Ref. No. 977. Included in Valve Gasket Set--Ref. No 1095.

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.3506--10 Assemblies include all parts shown in frames. 10/23/2006

10

975 495933 Bowl--Float975A 699502 Bowl--Float977 690192 Gasket Set--Carburetor987 D691326 Seal--Throttle Shaft

987A D698777 Seal--Throttle Shaft1005 699043 Fan--Flywheel1022K272475s Gasket--Rocker Cover1023 791079 Cover--Rocker1026 692003 Rod--Push

(Intake)-- -- -- -- -- -- Note -- -- -- -- -- --692011 Rod--Push(Exhaust)

1029 691751 Arm--Rocker1034 690822 Guide--Push Rod1036 Label--Emissions

(Available from anAuthorized Briggs &Stratton ServiceDealer)

1040 698368 Plate--Trim1044 698139 Screw

(Flywheel)1051 691265 Ring--Retaining1054 280275 Tie--Cable1058 275935 Operator’s Manual1059 698516 Kit--Screw/Washer1070 690372 Screw

(Flywheel Fan)

1090 691293 Retainer--Brush1091 691333 Cap--Limiter1095 690190 Gasket Set--Valve1119 691183 Screw

(Alternator)1127 695407 Screw

(Float Bowl)1263 697124 Reed--Breather1264 697104 Screw

(Breather Reed)1266 KD691917 Seal--O Ring

(Intake Elbow)1266A D697123 Seal--O Ring

(Intake Elbow)1267 697419 Latch--Blower Housing1270 697156 Plug--AVS

Counterweight1330 272147 Repair Manual

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