Briggs & Stratton 31N800 Series User manual

Category
Engine
Type
User manual

This manual is also suitable for

COPYRIGHT by BRIGGS & STRATTON CORPORATION
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.
PRINTED IN U.S.A.
FORM MS359310/30/2007
REPLACES FORM MS359306/11/2007
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.
35932 Assemblies include all parts shown in frames. 10/30/2007
2
29
32
307
306
718
3
22
15
1
2
24
691
552
10
358 ENGINE GASKET SET
11
584
9
1263
1264
43
1270
758
759
757
524
1022
12
9
7
3
868
842
691
51
20
617
27
28
26
27
25
741
146
12
20
4
16
46
24
45
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.
35933 Assemblies include all parts shown in frames. 10/30/2007
3
51
617
50
617
830
1034
1022
51
7
238
36
868
1029
33
5
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
42
42
850A
31N800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
35934 Assemblies include all parts shown in frames. 10/30/2007
4
385
387
385A
387A
918
601
240A
187B
601
105A
51
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
51
137A
617
125A
31N800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
35935 Assemblies include all parts shown in frames. 10/30/2007
5
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.
35936 Assemblies include all parts shown in frames. 10/30/2007
6
37
78
783
1051
23
1070
363
1044
1005
1005A
415A
1070A
73
74
73A
1005B
31N800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
35937 Assemblies include all parts shown in frames. 10/30/2007
7
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
K Included in Engine Gasket SetRef. No.358.
D Included in Carburetor Overhaul KitRef. No. 121A.
Δ Included in Valve Gasket SetRef. No 1095.
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
35938 Assemblies include all parts shown in frames. 10/30/2007
8
1 793987 Cylinder Assembly
2 399265 KitBushing/Seal
(Magneto Side)
3 K391086s SealOil
(Magneto Side)
4 697106 SumpEngine
5 793989 HeadCylinder
7 KΔ699168 GasketCylinder Head
9 K697109 GasketBreather
(Used Before Code
Date 07072400).
10 697157 Screw
(Breather Assembly)
11 794683 TubeBreather
(Used After Code Date
07071800).
−−−−−− Note −−−−−−
697113 TubeBreather
(Used Before Code
Date 07071900).
12 K697110 GasketCrankcase
(.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 PlugOil Drain
(Square Head)
16 697127 Crankshaft
20 K791892 SealOil
(PTO Side)
22 692125 Screw
(Crankcase
Cover/Sump)
23 693556 Flywheel
24 222698s KeyFlywheel
25 791937 Piston Assembly
(Standard)
−−−−−− Note −−−−−−
793019 Piston
Assembly
(.020 Oversize)
26 791936
Ring Set
(Standard)
−−−−−− Note −−−−−−
792649 Ring Set
(.020 Oversize)
27 698469 LockPiston Pin
28 697099 PinPiston
(Standard)
29 791631 RodConnecting
(Standard)
33 791934 ValveExhaust
34 791935 ValveIntake
35 691279 SpringValve
(Intake)
36 691279 SpringValve
(Exhaust)
37 697352 GuardFlywheel
42 499586 KeeperValve
43 691968 SlingerGovernor/Oil
45 690564 TappetValve
46 793880 Camshaft
50 690193 ManifoldIntake
51KΔD692137 GasketIntake
53 690227 Stud
(Carburetor)
54 691148 Screw
(Intake Manifold)
73 ScreenRotating
(Service With Flywheel
Fan 794436)
(Used Before Code
Date 07040900).
73A 794437 ScreenRotating
(Used After Code Date
07040800).
74 697897 Screw
(Rotating Screen)
(Used Before Code
Date 07040900).
78 691003 Screw
(Flywheel Guard)
94A 695425 KitIdle Mixture
95A D690718 Screw
(Throttle Valve)
98A 695408
KitIdle Speed
104A D694918 PinFloat Hinge
105A D696136 ValveFloat Needle
108B 695419 ValveChoke
117A 699732 JetMain
(Standard)
118A 843099 JetMain
(High Altitude)
121A 792369 KitCarburetor
Overhaul
(Nikki Carburetor)
125A 792171 Carburetor
(Nikki Carburetor)
127A D690727 PlugWelch
130A 699500 ValveThrottle
131A 699501 KitThrottle Shaft
133A 694914 FloatCarburetor
135 792022 TubeFuel Transfer
137A D698781 GasketFloat Bowl
141B 698778 KitChoke Shaft
146 691639 KeyTiming
187B 791805 LineFuel
(Formed)(101/4
Inches Long)(Cut to
Required Length)
188 691693 Screw
(Control Bracket)
192 691986 AdjusterRocker Arm
202 691841 LinkMechanical
Governor
209 692208 SpringGovernor
216 691840 LinkChoke
222 694042 BracketControl
227 691374 LeverGovernor
Control
232 691842 SpringGovernor Link
238 691843 CapValve
240A 691035 FilterFuel
(Includes Paper
Element With A 40
Micron Rating)
265 691024 ClampCasing
267 792629 Screw
(Casing Clamp)
268 691025 CasingControl Wire
(Cut To Required
Length)
269 691026 WireControl
(Cut To Required
Length)
270 691027 Nut
(Control Wire Casing)
271 691028 LeverControl
276A 695410 WasherSealing
304 790929 HousingBlower
(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
K Included in Engine Gasket SetRef. No.358.
D Included in Carburetor Overhaul KitRef. No. 121A.
Δ Included in Valve Gasket SetRef. No 1095.
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
35939 Assemblies include all parts shown in frames. 10/30/2007
9
306 697107 ShieldCylinder
307 691003 Screw
(Cylinder Shield)
309 693551 MotorStarter
310 690323 Screw
(Starter Motor)
311 497608 Brush Set
333 795315 ArmatureMagneto
334 691061 Screw
(Magneto Armature)
337 491055S PlugSpark
356 697089 WireStop
358 794150 Gasket SetEngine
363 19203 PullerFlywheel
383 89838S WrenchSpark Plug
385 694476 Screw
(Fuel Pump)
385A 690297 Screw
(Fuel Pump)
387 697090 PumpFuel
387A 808656 PumpFuel
404 691691 Washer
(Governor Crank)
415A 794129 Plug
(Cover/Retainer)
(Used After Code Date
07040800).
445 698083 FilterAir Cleaner
Cartridge
(Non Washable)
462 691261 Washer
(Starter Cable)
474B 696457 Alternator
(Tri Circuit)
501 691188 Regulator
503 691532 StrapStarter
505 691251 Nut
(Governor Control
Lever)
510 693699 DriveStarter
513 692024 ClutchDrive
521 690581 ShieldCable
523 699908 Dipstick
524 K691032 Seal
Dipstick Tube
525 697085 TubeDipstick
526 697088 Screw
(Regulator)
544 692034 ArmatureStarter
552 697144 BushingGovernor
Crank
559 697561 Screw
(Remote Choke Stop)
562 691119 Bolt
(Governor Control
Lever)
579 691029 Nut
(Starter Cable)
584 794682 CoverBreather
Passage
(Used After Code Date
07071800).
−−−−−− Note −−−−−−
697112 Cover
Breather Passage
(Used Before Code
Date 07071900).
601 791850 ClampHose
614 691620 PinCotter
616 692012 CrankGovernor
617 KD692138 SealO Ring
(Intake Manifold)
634B D698779 Spring/Seal Assembly
635 691909 BootSpark Plug
643 698401 RetainerAir Filter
654 690958 Nut
(Carburetor)
691 K692407 SealGovernor Shaft
697 690372 Screw
(Drive Cap)
718 690959 PinLocating
729A 691224 ClipWire
741 697128 GearTiming
757 793242 Link
Counterweight
758 793763 Counterweight
759 697392 PinCounterweight
783 693713 GearPinion
789A 698329 HarnessWiring
797 693167 Nut
(Brush Retainer)
801 691283 CapDrive
802 691286 CapEnd
803 HousingStarter
(Not Serviced
Separately, Order
Starter Motor 693551)
830 691095 StudRocker Arm
842 K691031 SealO Ring
(Dipstick Tube)
847 790443 Dipstick/Tube
Assembly
850 100100 SealantLiquid
(Breather)
(Used After Code Date
07071800).
850A 100100 SealantLiquid
(Rocker Cover)
(Used After Code Date
07091000).
851 692424 TerminalSpark Plug
868 KΔ690968 SealValve
877B 393537 Wire/Connector
Alternator
878A 691955 HarnessAlternator
914 691108 Screw
(Rocker Cover)
918 791851 HoseVacuum
947A 699915 SolenoidFuel
967 697015 FilterPre Cleaner
968 699830 CoverAir Cleaner
(Red)
975A 699502 BowlFloat
987A D698777 SealThrottle Shaft
1005 794438 FanFlywheel
(Used After Code Date
07040800).
1005A 794436 FanFlywheel
(Used Before Code
Date 07040900).
1005B FanFlywheel
(No Longer Available)
(See Reference1005A
For Service Flywheel
Fan).
1022KΔ272475s GasketRocker Cover
(Used Before Code
Date 07091100).
1023 791079 CoverRocker
1026 692003 RodPush
(Intake)
−−−−−− Note −−−−−−
692011 RodPush
(Exhaust)
1029 691751 ArmRocker
1034 690822 GuidePush Rod
1036 LabelEmissions
(Available From A
Briggs & Stratton
Authorized Dealer)
1040 698368 PlateTrim
1044 698139 Screw
(Flywheel)
1051 691265 RingRetaining
1054 280275 TieCable
1058 276344 Operator’s Manual
1059 698516 KitScrew/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
K Included in Engine Gasket SetRef. No.358.
D Included in Carburetor Overhaul KitRef. No. 121A.
Δ Included in Valve Gasket SetRef. No 1095.
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
359310 Assemblies include all parts shown in frames. 10/30/2007
10
1070A 690363 Screw
(Used After Code Date
07040800).
1090 691293 RetainerBrush
1095 690190 Gasket SetValve
1119 691183 Screw
(Alternator)
1127 695407 Screw
(Float Bowl)
1263 697124 ReedBreather
1264 697104 Screw
(Breather Reed)
1267 697424 LatchBlower Housing
(Red)
1270 697156 PlugAVS
Counterweight
1319 794467 LabelWarningl
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Briggs & Stratton 31N800 Series User manual

Category
Engine
Type
User manual
This manual is also suitable for

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