Briggs & Stratton 31N800 Series Guida all'installazione

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−3593−10/30/2007

REPLACES FORM MS−3593−06/11/2007

FILE IN SECT. 2 OF SERVICE MANUAL

31N800

Illustrated Parts List

Model Series

31N800

TYPE NUMBERS

.0440.

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

Gasket Set −Engine 2. . . . . . . . . . . . . . . . .

Gasket Set −Valve 3. . . . . . . . . . . . . . . . . .

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

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

Kit −Carburetor Overhaul 4. . . . . . . . . . . .

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

Operator’s Manual 2. . . . . . . . . . . . . . . . . .

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

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

Warning Label 2. . . . . . . . . . . . . . . . . . . . . .

31N800

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.

3593−2Assemblies include all parts shown in frames. 10/30/2007

29 32

307

306

718

691

552

358 ENGINE GASKET SET

584

1263

1264

1270

758

759

757

524

1022

868

842

691

617

741

146

46 24

1058 OPERATOR’S MANUAL 1319 WARNING LABEL

REQUIRED when replacing parts

with warning labels affixed.

850

31N800

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.

3593−3Assemblies include all parts shown in frames. 10/30/2007

617

830

1034

1022

238 36

868

1029

534

192

383

337

635

1026

1022

1023

914

1022

868

1095 VALVE GASKET SET

654

847

523

842

525

524

850A

31N800

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.

3593−4Assemblies include all parts shown in frames. 10/30/2007

385

387 385A

387A

918

601

240A

187B

601

105A

634B

987A

95A

130A

NIKKI

98A

94A

117A

141B

131A

127A

108B

118A

135

137A

104A

133A

1127

975A

947A

276A

137A

121A CARBURETOR OVERHAUL KIT

95A

104A

105A

127A

987A

634B

137A

617

125A

31N800

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.

3593−5Assemblies include all parts shown in frames. 10/30/2007

1267

967

305

643

968

304

305A

1036 EMISSIONS LABEL

1040

445

31N800

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.

3593−6Assemblies include all parts shown in frames. 10/30/2007

783

1051

1070

363 1044

1005

1005A

415A

1070A

73A

1005B

31N800

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.

3593−7Assemblies include all parts shown in frames. 10/30/2007

878A

474B

877B

TRI

CIRCUIT

1059

501

526

356

851

334

333

1054

216 202

232

268

269

271

270

267

265

209

222

188

616

404

614

562

505

227

697

729A

1051

510

513

783

802

462

579

503

310

803

544

801

309

1090 311

797

789A

521

NOTE: All stators use a No. mounting screw.

1119

NOTE: The proper flywheel part number and/or the alternator magnet size will

determine the alternator type or output. See repair instruction manual

for additional information.

559

REF. PART REF. PART REF. PART

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

31N800

KIncluded in Engine Gasket Set−Ref. No.358.

DIncluded in Carburetor Overhaul Kit−Ref. No. 121A.

ΔIncluded 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.

3593−8Assemblies include all parts shown in frames. 10/30/2007

1 793987 Cylinder Assembly

2 399265 Kit−Bushing/Seal

(Magneto Side)

3K391086s Seal−Oil

(Magneto Side)

4 697106 Sump−Engine

5 793989 Head−Cylinder

7KΔ699168 Gasket−Cylinder Head

9K697109 Gasket−Breather

(Used Before Code

Date 07072400).

10 697157 Screw

(Breather Assembly)

11 794683 Tube−Breather

(Used After Code Date

07071800).

−−−−−− Note −−−−−−

697113 Tube−Breather

(Used Before Code

Date 07071900).

12 K697110 Gasket−Crankcase

(.015”Thick)(Standard)

13 793988 Screw

(Cylinder Head)

(Used After Code Date

07011400).

−−−−−− Note −−−−−−

690360 Screw

(Cylinder Head)

(Used Before Code

Date 07011500).

(Cylinder Head)

15 690946 Plug−Oil Drain

(Square Head)

16 697127 Crankshaft

20 K791892 Seal−Oil

(PTO Side)

22 692125 Screw

(Crankcase

Cover/Sump)

23 693556 Flywheel

24 222698s Key−Flywheel

25 791937 Piston Assembly

(Standard)

−−−−−− Note −−−−−−

793019 Piston

Assembly

(.020 Oversize)

26 791936 Ring Set

(Standard)

−−−−−− Note −−−−−−

792649 Ring Set

(.020 Oversize)

27 698469 Lock−Piston Pin

28 697099 Pin−Piston

(Standard)

29 791631 Rod−Connecting

(Standard)

33 791934 Valve−Exhaust

34 791935 Valve−Intake

35 691279 Spring−Valve

(Intake)

36 691279 Spring−Valve

(Exhaust)

37 697352 Guard−Flywheel

42 499586 Keeper−Valve

43 691968 Slinger−Governor/Oil

45 690564 Tappet−Valve

46 793880 Camshaft

50 690193 Manifold−Intake

51KΔD692137 Gasket−Intake

53 690227 Stud

(Carburetor)

54 691148 Screw

(Intake Manifold)

73 Screen−Rotating

(Service With Flywheel

Fan 794436)

(Used Before Code

Date 07040900).

73A 794437 Screen−Rotating

(Used After Code Date

07040800).

74 697897 Screw

(Rotating Screen)

(Used Before Code

Date 07040900).

78 691003 Screw

(Flywheel Guard)

94A 695425 Kit−Idle Mixture

95A D690718 Screw

(Throttle Valve)

98A 695408 Kit−Idle Speed

104A D694918 Pin−Float Hinge

105A D696136 Valve−Float Needle

108B 695419 Valve−Choke

117A 699732 Jet−Main

(Standard)

118A 843099 Jet−Main

(High Altitude)

121A 792369 Kit−Carburetor

Overhaul

(Nikki Carburetor)

125A 792171 Carburetor

(Nikki Carburetor)

127A D690727 Plug−Welch

130A 699500 Valve−Throttle

131A 699501 Kit−Throttle Shaft

133A 694914 Float−Carburetor

135 792022 Tube−Fuel Transfer

137A D698781 Gasket−Float Bowl

141B 698778 Kit−Choke Shaft

146 691639 Key−Timing

187B 791805 Line−Fuel

(Formed)(10−1/4

Inches Long)(Cut to

Required Length)

188 691693 Screw

(Control Bracket)

192 691986 Adjuster−Rocker Arm

202 691841 Link−Mechanical

Governor

209 692208 Spring−Governor

216 691840 Link−Choke

222 694042 Bracket−Control

227 691374 Lever−Governor

Control

232 691842 Spring−Governor Link

238 691843 Cap−Valve

240A 691035 Filter−Fuel

(Includes Paper

Element With A 40

Micron Rating)

265 691024 Clamp−Casing

267 792629 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

276A 695410 Washer−Sealing

304 790929 Housing−Blower

(Red)

305 697102 Screw

(Blower Housing)

305A 793376 Screw

(Blower Housing)(Lift

Screw)

REF. PART REF. PART REF. PART

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

31N800

KIncluded in Engine Gasket Set−Ref. No.358.

DIncluded in Carburetor Overhaul Kit−Ref. No. 121A.

ΔIncluded 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.

3593−9Assemblies include all parts shown in frames. 10/30/2007

306 697107 Shield−Cylinder

307 691003 Screw

(Cylinder Shield)

309 693551 Motor−Starter

310 690323 Screw

(Starter Motor)

311 497608 Brush Set

333 795315 Armature−Magneto

334 691061 Screw

(Magneto Armature)

337 491055S Plug−Spark

356 697089 Wire−Stop

358 794150 Gasket Set−Engine

363 19203 Puller−Flywheel

383 89838S Wrench−Spark Plug

385 694476 Screw

(Fuel Pump)

385A 690297 Screw

(Fuel Pump)

387 697090 Pump−Fuel

387A 808656 Pump−Fuel

404 691691 Washer

(Governor Crank)

415A 794129 Plug

(Cover/Retainer)

(Used After Code Date

07040800).

445 698083 Filter−Air Cleaner

Cartridge

(Non Washable)

462 691261 Washer

(Starter Cable)

474B 696457 Alternator

(Tri Circuit)

501 691188 Regulator

503 691532 Strap−Starter

505 691251 Nut

(Governor Control

Lever)

510 693699 Drive−Starter

513 692024 Clutch−Drive

521 690581 Shield−Cable

523 699908 Dipstick

524 K691032 Seal−Dipstick Tube

525 697085 Tube−Dipstick

526 697088 Screw

(Regulator)

544 692034 Armature−Starter

552 697144 Bushing−Governor

Crank

559 697561 Screw

(Remote Choke Stop)

562 691119 Bolt

(Governor Control

Lever)

579 691029 Nut

(Starter Cable)

584 794682 Cover−Breather

Passage

(Used After Code Date

07071800).

−−−−−− Note −−−−−−

697112 Cover−

Breather Passage

(Used Before Code

Date 07071900).

601 791850 Clamp−Hose

614 691620 Pin−Cotter

616 692012 Crank−Governor

617 KD692138 Seal−O Ring

(Intake Manifold)

634B D698779 Spring/Seal Assembly

635 691909 Boot−Spark Plug

643 698401 Retainer−Air Filter

654 690958 Nut

(Carburetor)

691 K692407 Seal−Governor Shaft

697 690372 Screw

(Drive Cap)

718 690959 Pin−Locating

729A 691224 Clip−Wire

741 697128 Gear−Timing

757 793242 Link−Counterweight

758 793763 Counterweight

759 697392 Pin−Counterweight

783 693713 Gear−Pinion

789A 698329 Harness−Wiring

797 693167 Nut

(Brush Retainer)

801 691283 Cap−Drive

802 691286 Cap−End

803 Housing−Starter

(Not Serviced

Separately, Order

Starter Motor 693551)

830 691095 Stud−Rocker Arm

842 K691031 Seal−O Ring

(Dipstick Tube)

847 790443 Dipstick/Tube

Assembly

850 100100 Sealant−Liquid

(Breather)

(Used After Code Date

07071800).

850A 100100 Sealant−Liquid

(Rocker Cover)

(Used After Code Date

07091000).

851 692424 Terminal−Spark Plug

868 KΔ690968 Seal−Valve

877B 393537 Wire/Connector−

Alternator

878A 691955 Harness−Alternator

914 691108 Screw

(Rocker Cover)

918 791851 Hose−Vacuum

947A 699915 Solenoid−Fuel

967 697015 Filter−Pre Cleaner

968 699830 Cover−Air Cleaner

(Red)

975A 699502 Bowl−Float

987A D698777 Seal−Throttle Shaft

1005 794438 Fan−Flywheel

(Used After Code Date

07040800).

1005A 794436 Fan−Flywheel

(Used Before Code

Date 07040900).

1005B Fan−Flywheel

(No Longer Available)

(See Reference1005A

For Service Flywheel

Fan).

1022KΔ272475s Gasket−Rocker Cover

(Used Before Code

Date 07091100).

1023 791079 Cover−Rocker

1026 692003 Rod−Push

(Intake)

−−−−−− Note −−−−−−

692011 Rod−Push

(Exhaust)

1029 691751 Arm−Rocker

1034 690822 Guide−Push Rod

1036 Label−Emissions

(Available From A

Briggs & Stratton

Authorized Dealer)

1040 698368 Plate−Trim

1044 698139 Screw

(Flywheel)

1051 691265 Ring−Retaining

1054 280275 Tie−Cable

1058 276344 Operator’s Manual

1059 698516 Kit−Screw/Washer

1070 690372 Screw

(Flywheel Fan)

(Used Before Code

Date 07040900).

REF. PART REF. PART REF. PART

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

31N800

KIncluded in Engine Gasket Set−Ref. No.358.

DIncluded in Carburetor Overhaul Kit−Ref. No. 121A.

ΔIncluded 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.

3593−10 Assemblies include all parts shown in frames. 10/30/2007

1070A 690363 Screw

(Used After Code Date

07040800).

1090 691293 Retainer−Brush

1095 690190 Gasket Set−Valve

1119 691183 Screw

(Alternator)

1127 695407 Screw

(Float Bowl)

1263 697124 Reed−Breather

1264 697104 Screw

(Breather Reed)

1267 697424 Latch−Blower Housing

(Red)

1270 697156 Plug−AVS

Counterweight

1319 794467 Label−Warningl

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