1957 Evinrude outboard Big Twin & Lark 35 parts manual

PARTS LIST +++ EVINRUDE BIG TWIN AND LARK 35 ELECTRIC MODELS 25930 AND 25931 MODELS 25532 AND 25533 INSTRUCTIONS ON HOW TO ORDER For their convenience, as well as ours, we ask our for as a word. English words and code words may customers to carefully follow our instructions in be used in the same message, but code letters ordering parts. cannot be combined with English words. We also request that owners order their parts from A-1 G-7 L - Air Parcel Post our dealer or nearest service station or distributor. B-2 H-8 M - Freight - Truck C-3 1-9 V - Air Express ORDER BY PART NUMBER GIVING NAME OF PARTALSO. D-4 J-0 X - Express E - 5 K - Each Y - Parcel Post ALWAYS GIVE THE SERIAL NUMBER OF THE MOTOR F - 6 P - Number Z - Freight - Railway FOR WHICH PART OR PARTS ARE REQUIRED. This is very important, and is necessary to in- Following is an example of a telegram not coded telligently fill your order. If you cannot give the and the same reduced to code: number of the motor, state when and from whom the motor was purchased. (NOT CODED - 22 WORDS.) TELEGRAMS AND HOW TO USE "EVINRUDE CODE." Parcel Post Two Number One Three Naught Naught Four Four Propeller Nut Twelve Number One Three Telegram rates are based on fifteen words or less, Naught Naught Five Three Shear Pins. for immediate delivery. Day letter or night letter (CODED WORDS.) rates are considerably cheaper. Detailed informa- tion may be found on rear of any telegram blank. YBPAC JJDD Propeller Nut ABPAC JJEC Shear Pins. Use the following code only on messages of more than fifteen words. Each five code letters are charged Do not use this code in cable messages. ROUTING TERMS RETURNS SHIPPING INSTRUCTIONS. orders unaccompanied by cash is reserved by Unless specific instructions accompany the order, Evinrude Motors, Milwaukee. we will use our own judgement on how to ship. A minimum charge of $0.50 net will be made on TERMS: CASH WITH ORDER OR c.O.D. all orders amounting to less than this amount. We reserve the right to furnish additional parts to make In ordering parts, to avoid C.O.D. shipments and up the difference. extra charges, all orders should be accompanied lNsTRUCTIONS ON PARTS. by c a s h . Save time and money by remitting suffi- cient cash to cover cost of parts and Transporta- Parts can only be returned in accordance with terms tion Charges. Stamps are accepted in payment of outlined under the Service Policy laid down in the all orders not over $1.00. The right to hold all instruction manual. +++ ALL PRICES SUBJECT TO CHANGE WITHOUT NOTICE EVINRUDE MOTORS, Milwaukee, Wis., U.S.A. SECOND EDITION CABLE ADDRESS "EVINRUDE" www.repairmanuals4u.com

BIG TWIN ff=rIh= MOTOR COVER ORDER YOUR PARTS FROM YOUR DISTRICT SERVICE STATION 2 www.repairmanuals4u.com

BIG TWIN Rr fhcir MOTOR COVER Choke knob screw . . . . . . . . Choke control knob . . . . . . . Choke grommet . . . . . . . . . Adjusting knob screw . . . . . . High speed control knob, Models 25930, 25931 . . . . . . . . . . High speed control knob, Models 25532, 25533. . . . . . . . . . High speed cover grommet . . . Slow speed control knob, Models 25930, 25931. . . . . . . . . . Slow speed controlknob, Models 25532, 25533. . . . . . . . . . Low speed cover grommet . . . Motor cover mtg. screw, front. Motor cover mtg . screw, rear . . Cover mounting screw lockwasher Latch hook to motor cover screw Latch hook screw lockwasher. . Latch hook screw nut . . . . . . Motor cover latch hook . . . . . Motor cover finger tab . . . . . Cover latch hinge pin . . . . . . Cover latch hinge pin retaining ring . . . . . . . . . . . . . . Cover latch pivot pin . . . . . . Cover latch bale spring . . . . . Cover latch bale. . . . . . . . . Cover latch and bale, front . . . Cover latch and bale, rear, Models 25930, 25931 . . . . . Cover latch and bale, rear, Models 25532, 25533 . . . . . Latch retainer spring screw . . Latch retainer spring, front . . Latch retainer spring, rear . . Motor cover to starter housing bumper . . . . . . . . . . . . . Cover to starter housing bumper pin . . . . . . . . . . . . . . . Motor cover hinge pin ret. ring . Motor cover bumper . . . . . . Motor cover hinge pin assembly Motor cover assembly - Port, Models 25930, 25931 . . . . . QTY. *Not Shown NOTE: See back cover for additional LARK parts. 277684 277681 277683 204089 204012 552786 203786 304019 303714 300630 51x137 39x176 304812 B304812 21x171 21x358 304766 376868 204036 204037 304460 B304460 300630 43x302 204020 305021 277671 277673 277737 277740 ORDER YOUR PARTS FROM YOUR DISTRICT SERVICE STATION 3 PART NO. NAME OF PART QTY. NAME OF PART REF. NO. Motor cover assembly - Port, Models 25532, 25533. . . . . . Motor cover assembly - Star- board, Models 25930, 25931 . . Motor cover assembly - Star- board, Models 25532, 25533. . Medallion to motor cover fastener Motor cover medallion . . . . . Lower cover seal . . . . . . . . Monogram to cover nut . . . . . Control shaft to cover grommet. Lower motor cover screw, front to rear . . . . . . . . . . . . . Lower motor cover to exhaust tube screw, front . . . . . . . Lower cover to exhaust tube screw lockwasher, front . . . Lower motor cover to exh. tube screw Lower motor cover, front, Models 25930, 25931. . . . . . Lower motor cover, front, Models 25532, 25533. . . . . . . . . . Cable assy cover screw short . Cable assy cover screw, long. . Cable conn. cover to starter & solenoid Connector to starter motor and solenoid cable assembly . . . Connector to starter motor and solenoid cable ring terminal . Connector to starter motor and solenoid cable generator field ring terminal . . . . . . . . . Lower motor cover, rear, Models 25930, 25931 . . . . . Lower motor cover, rear, Models 25532, 25533 . . . . . Air silencer to lower cover screw Air silencer to lower cover screw washer . . . . . . . . . Monogram . . . . . . . . . . . . Conn. to starter motor cable strap Toolkitassy, Models 25930, 25931 Toolkitassy, Models 25532, 25533 Set of decals, Models 25930, 25931 , Set of decals, Models 25532, 25533 REF. NO. PART NO. 1 1 1 6 2 1 6 1 2 1 1 4 1 1 1 1 1 1 3 1 1 1 1 1 2 1 1 1 1 1 www.repairmanuals4u.com

BIG TWIN ff=r*;c CRANKCASE AND CYLINDER ORDER YOUR PARTS FROM YOUR DISTRICT SERVlCE STATlON 4 www.repairmanuals4u.com

QTY . 3 1 1 1 1 1 1 16 1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 11 1 1 2 2 1 1 2 1 1 1 2 2 1 1 2 2 9 1 1 1 1 1 1 2 2 4 2 8 1 1 2 3 1 3 2 1 1 1 5 CRANKCASE REF . QTY.NO. 55 56 57 58 59 60 61 62 63 64 65 66 67 * 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 * 88 89 90 91 t 92 t 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 * * . 1 1 1 1 1 1 2 1 2 1 1 1 1 2 2 2 1 2 2 2 10 2 2 2 9 1 1 2 4 1 1 2 2 1 1 2 1 1 4 4 6 4 1 1 2 4 2 3 3 1 1 1 1 2 plugs YOUR REF . NO . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 *Not $We PART NO . 51x137 304789 203944 302592 303970 304051 302587 25x238 304760 304762 304761 21x167 53x137 376835 302647 303644 376327 375989 303967 302675 304523 302062 304522 376836 304785 304775 304768 304784 304888 302033 302032 303761 304655 302031 375862 41A105 11x61 302811 302630 200322 376290 305027 303782 304763 300454 13x426 376840 304720 302600 301431 300343 302579 300646 302622 302621 300402 304178 300788 43x219 304847 376854 304201 277711 DISTRICT PART NO . 304740 300803 19x123 304583 377064 304738 303737 304751 303737 304755 300723 25x303 304750 304749 304753 304754 376853 304706 304705 377075 2'7x17 304727 304726 303245 25x238 377111 304724 304598 304442 303278 303277 302948 303109 304155 304198 25x238 304941 304790 41x178 302407 43x302 302405 302404 204131 203622 302406 203633 21x358 51x137 203925 305006 7x227 21x358 300646 Shown recommend AND CYLINDER NAME OF PART Starboard mounting bracket to ...... crankcase lockwasher ... Starter pinion shock absorber . . Starter and starter motor mtg brkt Shifter lock to cylinder screw . . ............ Shifter lock ......... Shifter lockwasher ......... Shifter lock spring Exhaust cover to cylinder screw . ....... Exhaust cover. outer ....... Exhaust cover gasket ....... Exhaust cover, inner .... Fuel filter mounting screw Filter mounting screw lockwasher Fuel filter assembly ....... ...... Filter fuel hose clamp Fuel filter to carburetor hose . . ....... Filter yoke assembly Fuel filter thumb nut and swivel cup assembly .......... Fuel filter bowl .......... ......... Fuel filter gasket ........... Fuel filter nut ............. Fuel filter Fuel filter stud .......... .. Fuel filter body and nipple assy ........ Bypass cover screw ....... Bypass cover, upper Bypass cover, lower ....... . Bypass cover to cylinder gasket Leaf valve cover to crankcase screw ............... Leaf valve cover .......... ...... Leaf valve cover gasket Leaf valve to crankcase screw . . .......... Leaf valve plate .... Crankcase drain leaf valve Oil line assembly ......... ........ Oil line packing nut ........... Oil line sleeve ........ Oil line tube spacer .............. Oil line ..... Spark plug, Champion J6J .... Spark plug, Auto-Lite A3X Cylinder head screw - short ... Cylinder head screw - long .... Ignition lead anchor ........ Ignition lead grommet ....... Core plug ............. Cylinder head and core plugs ... Cylinder head gasket ....... Crankcase to cylinder screw, bottom, short .......... Crankcase to cyl . screw, top, long . Top and bottom washer ...... Crankcase to cyl . screw, center . Crankcase to cylinder screw ... Cyl . to crankcase seal, Port ... Cyl . to crankcase seal, Starboard . Taper pin ............. Bearingdowel .......... Crankcase oil hole expansion plug . Crankcase oil plug ........ Starter motorto bracket seal ... Cylinder and crankcase assembly . Lead shot ............. ........... Set of gaskets SERVICE STATlON BIG TWIN ff~r*;r NAME OF PART ... Guide to starter housing shaft Guide shaft to starting hsg . washer ........ Bypass cover screw ...... Follower to arm screw Valve act . arm follower assembly .... Valve actuating arm guide .. Arm to valve lever assy screw ........ Valve actuating arm Valve brkt . to relief chamber screw ........ Valve lever bracket .... Valve lever shaft cotter pin ..... Valve lever shaft washer .... Valve lever bushing, lower .... Valve lever bushing, upper Valve actuating lever adj . screw nut ................ Valve actuating lever adj . screw . .. Valve actuating lever assembly ....... Valve spring retainer Compression relief valve spring . Compression relief valve and ....... "Ow ring assembly Upper compression relief chamber ..... to cylinder head screw Compression relief chamber, upper ............... Compression relief chamber .......... gasket, upper Compression relief chamber ............ screw plug Lower compression relief chamber to cylinder head screw Compression relief chamber, lower ............... Compression relief chamber to cylinder head gasket ....... Compression relief valve "Ovring Armature plate support screw . . Armature plate support ...... Armature plate retaining ring .. Control lever bearingclamp screw ... Control lever bearing clamp Control lever to gear pin ..... Armature plate control lever ... Control lever brkt . to cyl . screw . Control lever to cylinder bracket . H . T . lead clamp .......... Shroud mounting screw ...... Shroud mounting washer, large .. Shroud mounting washer, small. . Shroud mounting brkt . grommet . Shroud mounting bracket ..... Cover mounting bracket, front . . Cover mounting grommet washer, lower, Port ........... Shroud mounting spacer ...... Cover mounting grommet, Port .. Bracket to crankcase screw, Port Bracket to crankcase screw lockwasher, Port ........ Portstarter,silencermtg . bracket Starter brkt . to crankcase screw . Starter bracket to crankcase screw lockwasher ........ Starter brkt . to crankcase screw . Starter bracket to crankcase ........... screw, short either Champion or Auto-Eite spark ORDER YOUR PARTS FROM www.repairmanuals4u.com

BIG TWIN -fPzr*& CRANKSHAFT AND PISTON REF. NO. 1 2 3 4 5 5 5 6 7 8 9 9 9 10 11 12 13 14 15 REF. NO. PART NO. 510169 202967 302603 302529 304712 304595 304597 302577 304713 300288 376993 377073 377074 376566 304322 302602 302578 376433 303804 NO. I NAME OF PART NAME OF PART ........... Magneto cam ....... Connecting rod screw ..... Connecting rod retainer. .. Connecting rod roller bearing. ............ Piston ring ...... Piston ring, .020 0. S. ...... Piston ring, .040 0. S. ....... Wrist pin spring ring ............. Wrist pin ......... Piston dowel pin. ........ Piston, less rings. .. Piston, less rings, .020 0. S. .. Piston, less rings, .040 0. S. Connecting rod assembly ..... ..... Wrist pin needle bearing Flywheel to crankshaft key .... ...... Cam to crankshaft pin Roller brg. and seal assy., upper Bearix seal ........... ..... 304697 Crankshaft thrust washer ....... 302536 Retaining ring, lower 303801 Outer seal spring retaining washer ............ 302539 Seal spring ... 302594 Seal spring retaining washer ........... 3025s Boaring seal. 302540 Carbon "0" ring, to motors 25930- 12633, 25931-11300, 25532- ....... 13943, 25533-12000 305098 Carbon seal quad ring, motors 25930-12634 and up, 25931-11201 and up, 25532-13944 and up, ....... 25533-12001 and up 302537 Lower roller bearing seal"OT ring 375763 Roller bearing assembly, lower . .... 302585 Center bearing split sleeve ....... 302755 Bearing cage, center ...... 302584 Center bearing needle. ORDER YOUR PARTS FROM YOUR DISTRICT SERVICE STATION 6 www.repairmanuals4u.com

BIG TWIN e=r*;r REWIND STARTER *Not Shown 22 . .. I .. ..I ORDER YOUR PARTS FROM YOUR DISTRICT SERVICE STATION 7 REF . NO . * * 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 . PART NO . 277690 277691 303247 302473 53x409 303033 41A110 '71x1447 303051 304224 303245 303244 304808 304807 303591 304994 302104 71x1102 304770 304510 NAME OF PART Starter housing assembly, models 25930-25931 ........... Starter housing assembly. models 25532-25533 ........... Starter hsg . to locking lever screw Lever to housing bow washer ... Locking lever rod cotter pin ... Locking lever rod spring anchor . Throttle lever link Pin ...... Link washer ............ Link to locking lever spring ... Starter lock spring ........ Link collar screw ......... Starter lock link collar ...... Cam follower to locking lever rod Locking lever ........... . Starter hsg to mtg . brkt . screw . Starter hsg . to cyl . screw .... .. Guard to starter housing screw ... Guard to starter housing nut . Starter housing H . T . leads guard . Guard to starter housing washer QTY . 1 1 1 1 1 1 2 2 1 1 1 1 1 1 2 1 2 2 1 2 REF . NO . 19 20 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 PART NO . 304325 203906 204029 303560 302103 130530 202356 276643 202156 202155 202114 302222 71X1106 71x1026 202317 202470 376848 375836 204085 376851 302468 202111 NAME OF PART Starter handle rope anchor .... Starter handle, models 25930-25931 Starter handle. models 25532-25533 .... Rope to motor cover eyelet Spindle screw nut ......... Spindle to starter housing screw . Starter spindle washer ...... Starter spindle and pin ...... Starter spindle pin ........ Equalizer cup spring ....... Equalizer cup ........... Starter friction spring ....... Retainer screw .......... Retainer screw lockwasher .... ....... Starter pawl retainer Starter pawl ............ Starter pulley ........... Starter spring ........... Starter rope ............ ...... Starter housing and pin ...... Ratchet to dome screw Starter ratchet .......... QTY . 1 1 1 1 1 1 1 1 1 3 1 1 3 3 3 3 1 1 1 1 3 1 www.repairmanuals4u.com

BIG TWIN ff=r*Y CARBURETOR ORDER YOUR PARTS FROM YOUR DISTRICT SERVICE STATION 8 www.repairmanuals4u.com

BIG TWIN -fP~r/Ai CARBURETOR REF . NO . * * * 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 2 6 2 7 2 8 29 30 3 1 32 33 34 35 36 37 3 8 39 40 41 42 43 44 45 46 47 48 48 49 50 51 52 53 54 55 5 6 5 7 58 59 60 61 *Not Si PART NO . NAME OF PART Carburetor. solenoid and link assy Carburetor assembly less solenoid ........ Leaf plate assembly Link to anchor hssembly spring . . Anchor pin washer ........ Anchor pin sleeve ......... Pivot pin cotter pin ....... Pivot pin washer ......... Control lever to anchor and pin link ............... Control rod to throttle lever pin . Control lever to link and control ........... rod pivot pin Throttle control rod collar screw . .... Throttle control rod collar Throttle control rod ........ Air silencer to motor brkts . screw Air silencer to brkts . screw washer Air silencer to lower cover screw Air silencer to lower cover screw washer .............. Air silencer to carburetor screw . Air silencer to carburetor gasket . High and low speed stop screw . . High and low speed needle stop . . ...... Air silencer button plug ... Latch retainer spring screw ... Latch retainer spring. front ........ Air silencer screw ........ Air silencer. front Air silencer. rear ........ ... Fuel connector to filter hose ...... Filter fuel hose clamp Manifold to crankcase screw ... Manifold to crankcase screw. flat head ............... ... Leaf plate to manifold gasket Leaf plate to crankcase screw . . Leaf plate to crankcase gasket . . Leaf attaching screw ....... Leaf to leaf plate screw nut .... Leaf to leaf plate screw lockwasher Leaf valve ............. ............. Leaf stop Check valve to leaf plate screw . . Check valve spring ........ Check valve spring spacer .... Carburetor air line check valve . . ............. Leaf plate Carburetor to manifold stud nut . . Manifold to carburetor gasket . . Manifold to carburetor stud ... ......... Cam follower pin Throttle lever link bushing . to motors 25930-16000. 25532-21000 Throttle lever to cam follower link to motors 25930-16000. 25532-21000 Throttle lever to cam follower link. motors 25930-16001 & up. 25532-21001 & up ........ Cam follower to crankcase spring Cam follower to manifoldcotter pin Cam follower washer ........ Cam follower spacer ....... Cam follower assembly ...... Throttle lever. swivel pin and washer assembly ........ Manifold nipple .......... ...... Manifold nipple washer Intake manifold and stud assembly Manifold and carburetor hose clamp Fuel connector to carburetor and .......... manifold hoae Fuel connector body to strg . brkt . screw Slow speed valve nut to silencer washer .............. QTY . - 1 1 1 1 1 1 1 1 1 3 1 1 1 1 2 2 1 1 2 1 2 2 1 1 1 9 1 1 1 2 9 3 1 1 1 2 2 2 2 2 2 1 2 1 1 2 1 2 4 2 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 ORDER YOUR PARTS FROM YOU 9 REF . PART NO . 1 NO . I NAME OF PART QTY . - 1 1 1 1 1 1 2 1 1 1 1 1 4 1 1 1 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 110 111 112 113 114 115 116 117 118 R DISTRICT SERVICE STATION 375788 510193 301912 85x54 71x1447 303738 303737 303740 303792 376610 303745 376806 41A110 303734 41x163 303747 303739 305011 41x163 85x54 376255 303749 303964 43x156 302722 551517 305020 43x123 303965 304600 551517 304772 43x123 303939 303966 13x558 303750 302661 375792 303041 304031 304601 375798 301996 303760 302674 376256 304056 302696 376476 377222 301732 19x51 303962 304105 377224 53x197 305456 305457 .... Fuel connector body assembly Carburetor solenoid to wire .......... terminal screw ...... Solenoid shaft cotter pin ...... Solenoid shaft pin washer ...... Solenoid shaft pin washer .......... Solenoid shaft pin Yoke to float chamber screw (sems) . ... Solenoid to float chamber yoke ............ Solenoid cover ..... Solenoid plunger assembly ........... Solenoid spring .......... Solenoid assembly ............... Link pin ... Bellcrank to solenoid lever link ... Solenoid shaft lever cotter pin ............ Solenoid lever Float chamber to solenoid lever pivot shaft ............. ... Bellcrank to choke lever spring Bellcrank and throttle shaft cotter pin ................. Bellcrank lever and throttle shaft washer ............... Choke bellcrank and pin assembly . Bellcrank to choke control rod lever ................ .......... Choke control rod ..... Choke control spring screw ...... Choke control rod spring Adjusting knob screw. high speed . . .... Needle valve nut - high speed ........ Needle valve packing High speed needle valve. tomotors 25930-07986. 25931-08000. 25532- 04100. 25533-06000 ........ High speed needle valve. motors 25930-07987 & UP. 25931-08001 & up. 25532-04101 & up. 25533- 06001 & up ............. Adjusting knob screw -slow speed . ... Needle valve nut - slow speed Needle valve packing ........ Needle valve bushing ........ Slow speed needle valve ....... Float chamber to carburetor body ............... Screws Carburetor body to bowl gasket ... Hinge pin .............. ......... Float and float arm ..... Float chamber drain screw Float chamber ............ High speed nozzle .......... ... Float valve and seat assembly ....... Float valve seat washer Choke and throttle valve to shaft ................ screw Choke valve ............. Choke shaft. arm and pin assembly . ............ Throttle valve ........ Throttle shaft spring Throttle shaft and arm assy. tomotors 25930-16000. 25532-21000 ..... Throttle shaft and arm assy., motors 25930-16001 & Up. 25532-21001 &up Carburetor body fuel passage plug . ..... Carburetor body core plug Coreplug ............. ........ Carburetor body plug Carburetor body and plug assembly . Clamp to throttle arm screw. motors 25930-16001&up. 25532-21001&up Throttle arm cam bushing. motors 25930-16001&~p 25532-21001&~ Throttle arm to cam bushingclamp. motors 25930-16001 &up. 25532-21001 & up ................ www.repairmanuals4u.com

BIG TWIN ff=r/hir EXHAUST TUBE AND SWIVEL BRACKET I ORDER YOUR PARTS FROM YOUR DISTRICT SERVICE STATION 10 www.repairmanuals4u.com