FORM MS--3506--01/19/2006 REPLACES FORM MS--3506--08/01/2005 FILE IN SECT. 2 OF SERVICE MANUAL 31X700 Illustrated Parts List Model Series 31X700 TYPE 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 PRINTED IN U.S.A. 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.
1 29 32 2 3 28 27 552 691 25 27 718 46 306 45 26 307 16 43 3 7 9 358 ENGINE GASKET SET 24 12 20 868 524 617 691 842 883 1022 1266 1058 OPERATOR S MANUAL 146 741 758 757 1270 4 1330 REPAIR MANUAL 759 11 10 584 9 1264 1263 15 12 22 20 3506-2 Assemblies include all parts shown in frames. 10/23/2006 2
847 523 842 1095 VALVE GASKET SET 7 1022 525 868 524 5 33 34 883 192 1034 830 1022 1029 50 617 238 36 42 7 617 868 42 35 13 1026 337 635 383 45 54 654 1022 53 914 1023 3506-3 Assemblies include all parts shown in frames. 10/23/2006 3
141A 125 141 141B 634A 93 95 186 108A 118 692 131 130 95 987 93 142 LMT / PART NUMBER LOCATIONS 105 975 137 133 276 950 634 104 117 106 121 CARBURETOR OVERHAUL KIT 104 276 987 105 137 634A 1266 106 634 142 117 617 1266A 977 CARBURETOR GASKET SET 137 276 98 127 947 108 94 240 186A 187B 601 1091 WALBRO 121A CARBURETOR OVERHAUL KIT 117A 127A 617 95A 104A 105A 131A 130A 95A 276A 947A 987A 133A 137A 975A 1127 137A 634B 105A 104A 108B 634B 987A 98A 135 127A 137A NIKKI 1266 1266A 117A 94A 118A 187B 431 1266A 601 1266 3506-4 Assemblies include all parts shown in frames. 10/23/2006 4
304 968 1267 1040 305A 643 967 445 1036 EMISSIONS LABEL 73 74 305 3506-5 Assemblies include all parts shown in frames. 10/23/2006 5
78 363 1005 23 37 1070 1044 10 783 3506-6 Assemblies include all parts shown in frames. 10/23/2006 6
DUAL CIRCUIT 474A 877 1059 878 NOTE: All stators use a No. 1119 mounting screw. 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. 309 0 10 783 3 462 579 801 544 803 1090 311 797 802 1054 310 503 616 697 729A 227 404 505 614 562 188 333 8 789A 334 216 202 232 268 222 209 265 267 269 271 270 3506-7 Assemblies include all parts shown in frames. 10/23/2006 7
REF. PART REF. PART REF. PART NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION 1 697174 Cylinder Assembly 2 399265 Kit--Bushing/Seal (Magneto Side) 3 K391086s Seal--Oil (Magneto Side) 4 697106 Sump--Engine (Used After Code Date 000200). - - - - - - - Note - - - - - 795903 Sump--Engine (Used Before Code Date 000300). (Must Use Kit 795903, Includes Sump And Counterweight). 5 698148 Head--Cylinder 7 K 699168 Gasket--Cylinder Head 9 K697109 Gasket--Breather 10 697157 Screw (Breather Assembly) 11 697113 Tube--Breather 12 K697110 Gasket--Crankcase (.015 Thick) 13 690360 Screw (Cylinder Head) 15 690946 Plug--Oil Drain (3/8 Diameter) 16 697127 Crankshaft 20 K791892 Seal--Oil (PTO Side) 22 692125 Screw (Crankcase Cover/Sump) 23 693557 Flywheel 24 222698s Key--Flywheel 25 792507 Piston Assembly - - - - - - Note - - - - - - 792648 Piston Assembly (.020 Oversize) 26 791936 Ring Set--STD - - - - - - Note - - - - - - 791947 Ring Set--STD (.020 Oversize) 27 698469 Lock--Piston Pin 28 697099 Pin--Piston 29 791631 Rod--Connecting 32 791118 Screw (Connecting Rod) 33 695760 Valve--Exhaust 34 695761 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 790400 Camshaft 50 690193 Manifold--Intake K Dz692137 Gasket--Intake 53 690227 Stud (Carburetor) 54 691148 Screw (Intake Manifold) 73 697133 Screen--Rotating 74 697897 Screw (Rotating Screen) 78 691003 Screw (Flywheel Guard) 93 D690602 Bushing--Throttle Shaft 94 498030 Kit--Idle Mixture 94A 695425 Kit--Idle Mixture 95 D691636 Screw (Throttle Valve) 95A D690718 Screw (Throttle Valve) 98 495800 Kit--Idle Speed 98A 695408 Kit--Idle Speed 104 D690525 Pin--Float Hinge 104A D694918 Pin--Float Hinge 105 D231855s Valve--Float Needle 105A D696136 Valve--Float Needle 106 D690577 Seat--Inlet (Gravity Feed) 108 690464 Valve--Choke (Walbro Carburetor Part No. 697204) 108A 692344 Valve--Choke (Walbro Carburetor Part No. 697203) 108B 695419 Valve--Choke 117 D694352 Jet--Main 117A D699457 Jet--Main 118 697228 Jet--Main (High Altitude) 118A 699458 Jet--Main (High Altitude) 121 697241 Kit--Carburetor Overhaul (Walbro Carburetor) 121A 699521 Kit--Carburetor Overhaul (Nikki Carburetor) 125 793224 Carburetor (Gravity Feed) 127 695005 Plug--Welch (5/16 Diameter) 127A D690727 Plug--Welch 130 691750 Valve--Throttle 130A 699500 Valve--Throttle 131 790901 Kit--Throttle Shaft 131A 699501 Kit--Throttle Shaft 133 494381 Float--Carburetor 133A 694914 Float--Carburetor 135 698780 Tube--Fuel Transfer 137Dz281165s Gasket--Float Bowl 137A D698781 Gasket--Float Bowl 141 790905 Kit--Choke Shaft (Walbro Carburetor Part No. 697204) 141A 790902 Kit--Choke Shaft (Walbro Carburetor Part No. 697203) 141B 792777 Kit--Choke Shaft 142 D697140 Nozzle--Carburetor 146 691639 Key--Timing 186 692317 Connector--Hose (90 Degree) 186A 698174 Connector--Hose (Straight) 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 (Green) 216 691840 Link--Choke 222 694042 Bracket--Control 227 691374 Lever--Governor Control 232 691842 Spring--Governor Link 238 691843 Cap--Valve 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. 3506-8 Assemblies include all parts shown in frames. 10/23/2006 8
REF. PART REF. PART REF. PART NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION 240 394358s Filter--Fuel (White, 75 Microns) 265 691024 Clamp--Casing 267 6934 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 Dz692255 Washer--Sealing 276A 695410 Washer--Sealing 304 698402 Housing--Blower (Red) 305 697102 Screw (Blower Housing) 305A 697103 Screw (Blower Housing) 306 697107 Shield--Cylinder 307 691003 Screw (Cylinder Shield) 309 6935 Motor--Starter 310 690323 Screw (Starter Motor) 311 497608 Brush Set 333 492341 Armature--Magneto 334 691061 Screw (Magneto Armature) 337 491055s Plug--Spark 358 697191 Gasket Set--Engine 363 19203 Puller--Flywheel 383 89838s Wrench--Spark Plug 404 691691 Washer (Governor Crank) 431 697122 Elbow--Intake 445 698083 Filter--Air Cleaner Cartridge (Non Washable) 462 691261 Washer (Starter Cable) 474A 696459 Alternator (Dual Circuit) 503 691532 Strap--Starter 505 6912 Nut (Governor Control Lever) 0 693699 Drive--Starter 3 692024 Clutch--Drive 523 699908 Dipstick 524 K691032 Seal--Dipstick Tube 525 697184 Tube--Dipstick 544 692034 Armature--Starter 552 697144 Bushing--Governor Crank 562 691119 Bolt (Governor Control Lever) 579 691029 Nut (Starter Cable) 584 697112 Cover--Breather Passage 601 791850 Clamp--Hose 614 691620 Pin--Cotter 616 692012 Crank--Governor 617 KD692138 Seal--O Ring (Intake Manifold) 634 D690801 Spring/Seal Assembly (Walbro Carburetor Part No. 697204) 634A D690802 Spring/Seal Assembly (Walbro Carburetor Part No.s 696181, 697203) 634B D698779 Spring/Seal Assembly 635 691909 Boot--Spark Plug 643 698401 Retainer--Air Filter 654 690958 Nut (Carburetor) 691 K692407 Seal--Governor Shaft 692 690572 Spring--Detent 697 690372 Screw (Drive Cap) 31X700 718 690959 Pin--Locating 729A 691224 Clip--Wire 741 697128 Gear--Timing 757 697607 Link--Counterweight 758 793763 Counterweight (Used After Code Date 000200). - - - - - - - Note - - - - - 794903 Counterweight (Used Before Code Date 000300). (Must Use Kit 795903, Includes Sump And 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 6935) 830 691095 Stud--Rocker Arm 842 K691031 Seal--O Ring (Dipstick Tube) 847 790442 Dipstick/Tube Assembly 8 692424 Terminal--Spark Plug 868 K 690968 Seal--Valve 877 393456 Wire/Connector-- Alternator (Dual Circuit) 878 398661 Harness--Alternator (Dual Circuit) 883 K692236 Gasket--Exhaust 914 691108 Screw (Rocker Cover) 947 694393 Solenoid--Fuel 947A 699915 Solenoid--Fuel 950 691657 Screw--Float Bowl 967 697015 Filter--Pre Cleaner 968 698403 Cover--Air Cleaner (Black) 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. 3506-9 Assemblies include all parts shown in frames. 10/23/2006 9
REF. PART REF. PART REF. PART NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION 975 495933 Bowl--Float 975A 699502 Bowl--Float 977 690192 Gasket Set--Carburetor 987 D691326 Seal--Throttle Shaft 987A D698777 Seal--Throttle Shaft 1005 699043 Fan--Flywheel 1022K 272475s Gasket--Rocker Cover 1023 791079 Cover--Rocker 1026 692003 Rod--Push (Intake) - - - - - - Note - - - - - - 692011 Rod--Push (Exhaust) 1029 6917 Arm--Rocker 1034 690822 Guide--Push Rod 1036 Label--Emissions (Available from an Authorized Briggs & Stratton Service Dealer) 1040 698368 Plate--Trim 1044 698139 Screw (Flywheel) 10 691265 Ring--Retaining 1054 280275 Tie--Cable 1058 275935 Operator s Manual 1059 6986 Kit--Screw/Washer 1070 690372 Screw (Flywheel Fan) 1090 691293 Retainer--Brush 1091 691333 Cap--Limiter 1095 690190 Gasket Set--Valve 1119 691183 Screw (Alternator) 1127 695407 Screw (Float Bowl) 1263 697124 Reed--Breather 1264 697104 Screw (Breather Reed) 1266 KD691917 Seal--O Ring (Intake Elbow) 1266A D697123 Seal--O Ring (Intake Elbow) 1267 697419 Latch--Blower Housing 1270 697156 Plug--AVS Counterweight 1330 272147 Repair Manual 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. 3506-10 Assemblies include all parts shown in frames. 10/23/2006 10